diff --git a/CHANGELOG.md b/CHANGELOG.md
index e8bb5e9d..e44a617f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ ml).
 - [added] #167 new actions of status devices: use, recycling, refurbish and management.
 - [changes] #177 new structure of trade.
 - [bugfix] #184 clean nested of schemas of lot
+- [added] #182 adding power on hours
 
 ## [1.0.9-beta]
 - [added] #159 external document as proof of erase of disk
diff --git a/ereuse_devicehub/resources/action/models.py b/ereuse_devicehub/resources/action/models.py
index 93cdcdef..a213ced5 100644
--- a/ereuse_devicehub/resources/action/models.py
+++ b/ereuse_devicehub/resources/action/models.py
@@ -824,6 +824,12 @@ class TestDataStorage(TestMixin, Test):
     def reported_uncorrectable_errors(self):
         return self._reported_uncorrectable_errors
 
+    @property
+    def power_on_hours(self):
+        if not self.lifetime:
+            return 0
+        return int(self.lifetime.total_seconds()/3600)
+
     @reported_uncorrectable_errors.setter
     def reported_uncorrectable_errors(self, value):
         # We assume that a huge number is not meaningful
diff --git a/ereuse_devicehub/resources/action/schemas.py b/ereuse_devicehub/resources/action/schemas.py
index eb69f936..bca1d8db 100644
--- a/ereuse_devicehub/resources/action/schemas.py
+++ b/ereuse_devicehub/resources/action/schemas.py
@@ -238,6 +238,7 @@ class TestDataStorage(Test):
     length = EnumField(TestDataStorageLength, required=True)
     status = SanitizedStr(lower=True, validate=Length(max=STR_SIZE), required=True)
     lifetime = TimeDelta(precision=TimeDelta.HOURS)
+    power_on_hours = Integer(data_key='powerOnHours', dump_only=True)
     assessment = Boolean()
     reallocated_sector_count = Integer(data_key='reallocatedSectorCount')
     power_cycle_count = Integer(data_key='powerCycleCount')
diff --git a/ereuse_devicehub/resources/documents/device_row.py b/ereuse_devicehub/resources/documents/device_row.py
index 26eecd21..0517cecb 100644
--- a/ereuse_devicehub/resources/documents/device_row.py
+++ b/ereuse_devicehub/resources/documents/device_row.py
@@ -235,6 +235,7 @@ class DeviceRow(OrderedDict):
             self['Test {} {} Power on (hours used)'.format(ctype, i)] = ''
             self['Test {} {} Lifetime remaining (percentage)'.format(
                 ctype, i)] = ''
+            self['Test {} {} Power on hours'.format(ctype, i)] = ''
             return
 
         snapshot = get_action(component, 'Snapshot')
@@ -332,6 +333,7 @@ class DeviceRow(OrderedDict):
             self['Test {} {} Power on (hours used)'.format(ctype, i)] = ''
             self['Test {} {} Lifetime remaining (percentage)'.format(
                 ctype, i)] = ''
+            self['Test {} {} Power on hours'.format(ctype, i)] = ''
             return
 
         self['Test {} {} Software'.format(ctype, i)] = software
@@ -342,6 +344,8 @@ class DeviceRow(OrderedDict):
             test_storage.power_cycle_count)
         self['Test {} {} Lifetime remaining (percentage)'.format(ctype, i)] = none2str(
             test_storage.lifetime)
+        self['Test {} {} Power on hours'.format(ctype, i)] = none2str(
+            test_storage.power_on_hours)
 
     def get_graphic_card(self, ctype, i, component):
         """Particular fields for component GraphicCard."""
diff --git a/tests/files/basic.csv b/tests/files/basic.csv
index 253838e9..591a9642 100644
--- a/tests/files/basic.csv
+++ b/tests/files/basic.csv
@@ -1,2 +1,2 @@
-DHID;DocumentID;Public Link;Lots;Tag 1 Type;Tag 1 ID;Tag 1 Organization;Tag 2 Type;Tag 2 ID;Tag 2 Organization;Tag 3 Type;Tag 3 ID;Tag 3 Organization;Device Hardware ID;Device Type;Device Chassis;Device Serial Number;Device Model;Device Manufacturer;Registered in;Registered (process);Updated in (software);Updated in (web);Physical state;Trading state;Processor;RAM (MB);Data Storage Size (MB);Processor 1;Processor 1 Manufacturer;Processor 1 Model;Processor 1 Serial Number;Processor 1 Number of cores;Processor 1 Speed (GHz);Benchmark Processor 1 (points);Benchmark ProcessorSysbench Processor 1 (points);Processor 2;Processor 2 Manufacturer;Processor 2 Model;Processor 2 Serial Number;Processor 2 Number of cores;Processor 2 Speed (GHz);Benchmark Processor 2 (points);Benchmark ProcessorSysbench Processor 2 (points);RamModule 1;RamModule 1 Manufacturer;RamModule 1 Model;RamModule 1 Serial Number;RamModule 1 Size (MB);RamModule 1 Speed (MHz);RamModule 2;RamModule 2 Manufacturer;RamModule 2 Model;RamModule 2 Serial Number;RamModule 2 Size (MB);RamModule 2 Speed (MHz);RamModule 3;RamModule 3 Manufacturer;RamModule 3 Model;RamModule 3 Serial Number;RamModule 3 Size (MB);RamModule 3 Speed (MHz);RamModule 4;RamModule 4 Manufacturer;RamModule 4 Model;RamModule 4 Serial Number;RamModule 4 Size (MB);RamModule 4 Speed (MHz);DataStorage 1;DataStorage 1 Manufacturer;DataStorage 1 Model;DataStorage 1 Serial Number;DataStorage 1 Size (MB);Erasure DataStorage 1;Erasure DataStorage 1 Serial Number;Erasure DataStorage 1 Size (MB);Erasure DataStorage 1 Software;Erasure DataStorage 1 Result;Erasure DataStorage 1 Certificate URL;Erasure DataStorage 1 Type;Erasure DataStorage 1 Method;Erasure DataStorage 1 Elapsed (hours);Erasure DataStorage 1 Date;Erasure DataStorage 1 Steps;Erasure DataStorage 1 Steps Start Time;Erasure DataStorage 1 Steps End Time;Benchmark DataStorage 1 Read Speed (MB/s);Benchmark DataStorage 1 Writing speed (MB/s);Test DataStorage 1 Software;Test DataStorage 1 Type;Test DataStorage 1 Result;Test DataStorage 1 Power on (hours used);Test DataStorage 1 Lifetime remaining (percentage);DataStorage 2;DataStorage 2 Manufacturer;DataStorage 2 Model;DataStorage 2 Serial Number;DataStorage 2 Size (MB);Erasure DataStorage 2;Erasure DataStorage 2 Serial Number;Erasure DataStorage 2 Size (MB);Erasure DataStorage 2 Software;Erasure DataStorage 2 Result;Erasure DataStorage 2 Certificate URL;Erasure DataStorage 2 Type;Erasure DataStorage 2 Method;Erasure DataStorage 2 Elapsed (hours);Erasure DataStorage 2 Date;Erasure DataStorage 2 Steps;Erasure DataStorage 2 Steps Start Time;Erasure DataStorage 2 Steps End Time;Benchmark DataStorage 2 Read Speed (MB/s);Benchmark DataStorage 2 Writing speed (MB/s);Test DataStorage 2 Software;Test DataStorage 2 Type;Test DataStorage 2 Result;Test DataStorage 2 Power on (hours used);Test DataStorage 2 Lifetime remaining (percentage);DataStorage 3;DataStorage 3 Manufacturer;DataStorage 3 Model;DataStorage 3 Serial Number;DataStorage 3 Size (MB);Erasure DataStorage 3;Erasure DataStorage 3 Serial Number;Erasure DataStorage 3 Size (MB);Erasure DataStorage 3 Software;Erasure DataStorage 3 Result;Erasure DataStorage 3 Certificate URL;Erasure DataStorage 3 Type;Erasure DataStorage 3 Method;Erasure DataStorage 3 Elapsed (hours);Erasure DataStorage 3 Date;Erasure DataStorage 3 Steps;Erasure DataStorage 3 Steps Start Time;Erasure DataStorage 3 Steps End Time;Benchmark DataStorage 3 Read Speed (MB/s);Benchmark DataStorage 3 Writing speed (MB/s);Test DataStorage 3 Software;Test DataStorage 3 Type;Test DataStorage 3 Result;Test DataStorage 3 Power on (hours used);Test DataStorage 3 Lifetime remaining (percentage);DataStorage 4;DataStorage 4 Manufacturer;DataStorage 4 Model;DataStorage 4 Serial Number;DataStorage 4 Size (MB);Erasure DataStorage 4;Erasure DataStorage 4 Serial Number;Erasure DataStorage 4 Size (MB);Erasure DataStorage 4 Software;Erasure DataStorage 4 Result;Erasure DataStorage 4 Certificate URL;Erasure DataStorage 4 Type;Erasure DataStorage 4 Method;Erasure DataStorage 4 Elapsed (hours);Erasure DataStorage 4 Date;Erasure DataStorage 4 Steps;Erasure DataStorage 4 Steps Start Time;Erasure DataStorage 4 Steps End Time;Benchmark DataStorage 4 Read Speed (MB/s);Benchmark DataStorage 4 Writing speed (MB/s);Test DataStorage 4 Software;Test DataStorage 4 Type;Test DataStorage 4 Result;Test DataStorage 4 Power on (hours used);Test DataStorage 4 Lifetime remaining (percentage);Motherboard 1;Motherboard 1 Manufacturer;Motherboard 1 Model;Motherboard 1 Serial Number;Display 1;Display 1 Manufacturer;Display 1 Model;Display 1 Serial Number;GraphicCard 1;GraphicCard 1 Manufacturer;GraphicCard 1 Model;GraphicCard 1 Serial Number;GraphicCard 1 Memory (MB);GraphicCard 2;GraphicCard 2 Manufacturer;GraphicCard 2 Model;GraphicCard 2 Serial Number;GraphicCard 2 Memory (MB);NetworkAdapter 1;NetworkAdapter 1 Manufacturer;NetworkAdapter 1 Model;NetworkAdapter 1 Serial Number;NetworkAdapter 2;NetworkAdapter 2 Manufacturer;NetworkAdapter 2 Model;NetworkAdapter 2 Serial Number;SoundCard 1;SoundCard 1 Manufacturer;SoundCard 1 Model;SoundCard 1 Serial Number;SoundCard 2;SoundCard 2 Manufacturer;SoundCard 2 Model;SoundCard 2 Serial Number;Device Rate;Device Range;Processor Rate;Processor Range;RAM Rate;RAM Range;Data Storage Rate;Data Storage Range;Price;Benchmark RamSysbench (points)
-O48N2;;http://localhost/devices/O48N2;;named;O48N2;FooOrg;;;;;;;desktop-d1mr-d1ml-d1s;Desktop;Microtower;d1s;d1ml;d1mr;Mon Aug  2 10:25:31 2021;Workbench 11.0;2021-08-02 10:25:31.457986+02:00;;;;p1ml;0;0;Processor 6: model p1ml, S/N p1s;p1mr;p1ml;p1s;;1.6;2410.0;;;;;;;;;;RamModule 5: model rm1ml, S/N rm1s;rm1mr;rm1ml;rm1s;;1333;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GraphicCard 4: model gc1ml, S/N gc1s;gc1mr;gc1ml;gc1s;;;;;;;;;;;;;;;;;;;;;;;1.0;VERY_LOW;1.0;VERY_LOW;1.0;VERY_LOW;1.0;VERY_LOW;;
+DHID;DocumentID;Public Link;Lots;Tag 1 Type;Tag 1 ID;Tag 1 Organization;Tag 2 Type;Tag 2 ID;Tag 2 Organization;Tag 3 Type;Tag 3 ID;Tag 3 Organization;Device Hardware ID;Device Type;Device Chassis;Device Serial Number;Device Model;Device Manufacturer;Registered in;Registered (process);Updated in (software);Updated in (web);Physical state;Trading state;Processor;RAM (MB);Data Storage Size (MB);Processor 1;Processor 1 Manufacturer;Processor 1 Model;Processor 1 Serial Number;Processor 1 Number of cores;Processor 1 Speed (GHz);Benchmark Processor 1 (points);Benchmark ProcessorSysbench Processor 1 (points);Processor 2;Processor 2 Manufacturer;Processor 2 Model;Processor 2 Serial Number;Processor 2 Number of cores;Processor 2 Speed (GHz);Benchmark Processor 2 (points);Benchmark ProcessorSysbench Processor 2 (points);RamModule 1;RamModule 1 Manufacturer;RamModule 1 Model;RamModule 1 Serial Number;RamModule 1 Size (MB);RamModule 1 Speed (MHz);RamModule 2;RamModule 2 Manufacturer;RamModule 2 Model;RamModule 2 Serial Number;RamModule 2 Size (MB);RamModule 2 Speed (MHz);RamModule 3;RamModule 3 Manufacturer;RamModule 3 Model;RamModule 3 Serial Number;RamModule 3 Size (MB);RamModule 3 Speed (MHz);RamModule 4;RamModule 4 Manufacturer;RamModule 4 Model;RamModule 4 Serial Number;RamModule 4 Size (MB);RamModule 4 Speed (MHz);DataStorage 1;DataStorage 1 Manufacturer;DataStorage 1 Model;DataStorage 1 Serial Number;DataStorage 1 Size (MB);Erasure DataStorage 1;Erasure DataStorage 1 Serial Number;Erasure DataStorage 1 Size (MB);Erasure DataStorage 1 Software;Erasure DataStorage 1 Result;Erasure DataStorage 1 Certificate URL;Erasure DataStorage 1 Type;Erasure DataStorage 1 Method;Erasure DataStorage 1 Elapsed (hours);Erasure DataStorage 1 Date;Erasure DataStorage 1 Steps;Erasure DataStorage 1 Steps Start Time;Erasure DataStorage 1 Steps End Time;Benchmark DataStorage 1 Read Speed (MB/s);Benchmark DataStorage 1 Writing speed (MB/s);Test DataStorage 1 Software;Test DataStorage 1 Type;Test DataStorage 1 Result;Test DataStorage 1 Power on (hours used);Test DataStorage 1 Lifetime remaining (percentage);Test DataStorage 1 Power on hours;DataStorage 2;DataStorage 2 Manufacturer;DataStorage 2 Model;DataStorage 2 Serial Number;DataStorage 2 Size (MB);Erasure DataStorage 2;Erasure DataStorage 2 Serial Number;Erasure DataStorage 2 Size (MB);Erasure DataStorage 2 Software;Erasure DataStorage 2 Result;Erasure DataStorage 2 Certificate URL;Erasure DataStorage 2 Type;Erasure DataStorage 2 Method;Erasure DataStorage 2 Elapsed (hours);Erasure DataStorage 2 Date;Erasure DataStorage 2 Steps;Erasure DataStorage 2 Steps Start Time;Erasure DataStorage 2 Steps End Time;Benchmark DataStorage 2 Read Speed (MB/s);Benchmark DataStorage 2 Writing speed (MB/s);Test DataStorage 2 Software;Test DataStorage 2 Type;Test DataStorage 2 Result;Test DataStorage 2 Power on (hours used);Test DataStorage 2 Lifetime remaining (percentage);Test DataStorage 2 Power on hours;DataStorage 3;DataStorage 3 Manufacturer;DataStorage 3 Model;DataStorage 3 Serial Number;DataStorage 3 Size (MB);Erasure DataStorage 3;Erasure DataStorage 3 Serial Number;Erasure DataStorage 3 Size (MB);Erasure DataStorage 3 Software;Erasure DataStorage 3 Result;Erasure DataStorage 3 Certificate URL;Erasure DataStorage 3 Type;Erasure DataStorage 3 Method;Erasure DataStorage 3 Elapsed (hours);Erasure DataStorage 3 Date;Erasure DataStorage 3 Steps;Erasure DataStorage 3 Steps Start Time;Erasure DataStorage 3 Steps End Time;Benchmark DataStorage 3 Read Speed (MB/s);Benchmark DataStorage 3 Writing speed (MB/s);Test DataStorage 3 Software;Test DataStorage 3 Type;Test DataStorage 3 Result;Test DataStorage 3 Power on (hours used);Test DataStorage 3 Lifetime remaining (percentage);Test DataStorage 3 Power on hours;DataStorage 4;DataStorage 4 Manufacturer;DataStorage 4 Model;DataStorage 4 Serial Number;DataStorage 4 Size (MB);Erasure DataStorage 4;Erasure DataStorage 4 Serial Number;Erasure DataStorage 4 Size (MB);Erasure DataStorage 4 Software;Erasure DataStorage 4 Result;Erasure DataStorage 4 Certificate URL;Erasure DataStorage 4 Type;Erasure DataStorage 4 Method;Erasure DataStorage 4 Elapsed (hours);Erasure DataStorage 4 Date;Erasure DataStorage 4 Steps;Erasure DataStorage 4 Steps Start Time;Erasure DataStorage 4 Steps End Time;Benchmark DataStorage 4 Read Speed (MB/s);Benchmark DataStorage 4 Writing speed (MB/s);Test DataStorage 4 Software;Test DataStorage 4 Type;Test DataStorage 4 Result;Test DataStorage 4 Power on (hours used);Test DataStorage 4 Lifetime remaining (percentage);Test DataStorage 4 Power on hours;Motherboard 1;Motherboard 1 Manufacturer;Motherboard 1 Model;Motherboard 1 Serial Number;Display 1;Display 1 Manufacturer;Display 1 Model;Display 1 Serial Number;GraphicCard 1;GraphicCard 1 Manufacturer;GraphicCard 1 Model;GraphicCard 1 Serial Number;GraphicCard 1 Memory (MB);GraphicCard 2;GraphicCard 2 Manufacturer;GraphicCard 2 Model;GraphicCard 2 Serial Number;GraphicCard 2 Memory (MB);NetworkAdapter 1;NetworkAdapter 1 Manufacturer;NetworkAdapter 1 Model;NetworkAdapter 1 Serial Number;NetworkAdapter 2;NetworkAdapter 2 Manufacturer;NetworkAdapter 2 Model;NetworkAdapter 2 Serial Number;SoundCard 1;SoundCard 1 Manufacturer;SoundCard 1 Model;SoundCard 1 Serial Number;SoundCard 2;SoundCard 2 Manufacturer;SoundCard 2 Model;SoundCard 2 Serial Number;Device Rate;Device Range;Processor Rate;Processor Range;RAM Rate;RAM Range;Data Storage Rate;Data Storage Range;Price;Benchmark RamSysbench (points)
+O48N2;;http://localhost/devices/O48N2;;named;O48N2;FooOrg;;;;;;;desktop-d1mr-d1ml-d1s;Desktop;Microtower;d1s;d1ml;d1mr;Tue Nov 23 15:12:59 2021;Workbench 11.0;2021-11-23 15:12:59.333542+01:00;;;;p1ml;0;0;Processor 6: model p1ml, S/N p1s;p1mr;p1ml;p1s;;1.6;2410.0;;;;;;;;;;RamModule 5: model rm1ml, S/N rm1s;rm1mr;rm1ml;rm1s;;1333;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GraphicCard 4: model gc1ml, S/N gc1s;gc1mr;gc1ml;gc1s;;;;;;;;;;;;;;;;;;;;;;;1.0;VERY_LOW;1.0;VERY_LOW;1.0;VERY_LOW;1.0;VERY_LOW;;
diff --git a/tests/files/proposal_extended_csv_report.csv b/tests/files/proposal_extended_csv_report.csv
index 67f8bf27..3466c52d 100644
--- a/tests/files/proposal_extended_csv_report.csv
+++ b/tests/files/proposal_extended_csv_report.csv
@@ -1,3 +1,3 @@
-DHID;DocumentID;Public Link;Lots;Tag 1 Type;Tag 1 ID;Tag 1 Organization;Tag 2 Type;Tag 2 ID;Tag 2 Organization;Tag 3 Type;Tag 3 ID;Tag 3 Organization;Device Hardware ID;Device Type;Device Chassis;Device Serial Number;Device Model;Device Manufacturer;Registered in;Registered (process);Updated in (software);Updated in (web);Physical state;Trading state;Processor;RAM (MB);Data Storage Size (MB);Processor 1;Processor 1 Manufacturer;Processor 1 Model;Processor 1 Serial Number;Processor 1 Number of cores;Processor 1 Speed (GHz);Benchmark Processor 1 (points);Benchmark ProcessorSysbench Processor 1 (points);Processor 2;Processor 2 Manufacturer;Processor 2 Model;Processor 2 Serial Number;Processor 2 Number of cores;Processor 2 Speed (GHz);Benchmark Processor 2 (points);Benchmark ProcessorSysbench Processor 2 (points);RamModule 1;RamModule 1 Manufacturer;RamModule 1 Model;RamModule 1 Serial Number;RamModule 1 Size (MB);RamModule 1 Speed (MHz);RamModule 2;RamModule 2 Manufacturer;RamModule 2 Model;RamModule 2 Serial Number;RamModule 2 Size (MB);RamModule 2 Speed (MHz);RamModule 3;RamModule 3 Manufacturer;RamModule 3 Model;RamModule 3 Serial Number;RamModule 3 Size (MB);RamModule 3 Speed (MHz);RamModule 4;RamModule 4 Manufacturer;RamModule 4 Model;RamModule 4 Serial Number;RamModule 4 Size (MB);RamModule 4 Speed (MHz);DataStorage 1;DataStorage 1 Manufacturer;DataStorage 1 Model;DataStorage 1 Serial Number;DataStorage 1 Size (MB);Erasure DataStorage 1;Erasure DataStorage 1 Serial Number;Erasure DataStorage 1 Size (MB);Erasure DataStorage 1 Software;Erasure DataStorage 1 Result;Erasure DataStorage 1 Certificate URL;Erasure DataStorage 1 Type;Erasure DataStorage 1 Method;Erasure DataStorage 1 Elapsed (hours);Erasure DataStorage 1 Date;Erasure DataStorage 1 Steps;Erasure DataStorage 1 Steps Start Time;Erasure DataStorage 1 Steps End Time;Benchmark DataStorage 1 Read Speed (MB/s);Benchmark DataStorage 1 Writing speed (MB/s);Test DataStorage 1 Software;Test DataStorage 1 Type;Test DataStorage 1 Result;Test DataStorage 1 Power on (hours used);Test DataStorage 1 Lifetime remaining (percentage);DataStorage 2;DataStorage 2 Manufacturer;DataStorage 2 Model;DataStorage 2 Serial Number;DataStorage 2 Size (MB);Erasure DataStorage 2;Erasure DataStorage 2 Serial Number;Erasure DataStorage 2 Size (MB);Erasure DataStorage 2 Software;Erasure DataStorage 2 Result;Erasure DataStorage 2 Certificate URL;Erasure DataStorage 2 Type;Erasure DataStorage 2 Method;Erasure DataStorage 2 Elapsed (hours);Erasure DataStorage 2 Date;Erasure DataStorage 2 Steps;Erasure DataStorage 2 Steps Start Time;Erasure DataStorage 2 Steps End Time;Benchmark DataStorage 2 Read Speed (MB/s);Benchmark DataStorage 2 Writing speed (MB/s);Test DataStorage 2 Software;Test DataStorage 2 Type;Test DataStorage 2 Result;Test DataStorage 2 Power on (hours used);Test DataStorage 2 Lifetime remaining (percentage);DataStorage 3;DataStorage 3 Manufacturer;DataStorage 3 Model;DataStorage 3 Serial Number;DataStorage 3 Size (MB);Erasure DataStorage 3;Erasure DataStorage 3 Serial Number;Erasure DataStorage 3 Size (MB);Erasure DataStorage 3 Software;Erasure DataStorage 3 Result;Erasure DataStorage 3 Certificate URL;Erasure DataStorage 3 Type;Erasure DataStorage 3 Method;Erasure DataStorage 3 Elapsed (hours);Erasure DataStorage 3 Date;Erasure DataStorage 3 Steps;Erasure DataStorage 3 Steps Start Time;Erasure DataStorage 3 Steps End Time;Benchmark DataStorage 3 Read Speed (MB/s);Benchmark DataStorage 3 Writing speed (MB/s);Test DataStorage 3 Software;Test DataStorage 3 Type;Test DataStorage 3 Result;Test DataStorage 3 Power on (hours used);Test DataStorage 3 Lifetime remaining (percentage);DataStorage 4;DataStorage 4 Manufacturer;DataStorage 4 Model;DataStorage 4 Serial Number;DataStorage 4 Size (MB);Erasure DataStorage 4;Erasure DataStorage 4 Serial Number;Erasure DataStorage 4 Size (MB);Erasure DataStorage 4 Software;Erasure DataStorage 4 Result;Erasure DataStorage 4 Certificate URL;Erasure DataStorage 4 Type;Erasure DataStorage 4 Method;Erasure DataStorage 4 Elapsed (hours);Erasure DataStorage 4 Date;Erasure DataStorage 4 Steps;Erasure DataStorage 4 Steps Start Time;Erasure DataStorage 4 Steps End Time;Benchmark DataStorage 4 Read Speed (MB/s);Benchmark DataStorage 4 Writing speed (MB/s);Test DataStorage 4 Software;Test DataStorage 4 Type;Test DataStorage 4 Result;Test DataStorage 4 Power on (hours used);Test DataStorage 4 Lifetime remaining (percentage);Motherboard 1;Motherboard 1 Manufacturer;Motherboard 1 Model;Motherboard 1 Serial Number;Display 1;Display 1 Manufacturer;Display 1 Model;Display 1 Serial Number;GraphicCard 1;GraphicCard 1 Manufacturer;GraphicCard 1 Model;GraphicCard 1 Serial Number;GraphicCard 1 Memory (MB);GraphicCard 2;GraphicCard 2 Manufacturer;GraphicCard 2 Model;GraphicCard 2 Serial Number;GraphicCard 2 Memory (MB);NetworkAdapter 1;NetworkAdapter 1 Manufacturer;NetworkAdapter 1 Model;NetworkAdapter 1 Serial Number;NetworkAdapter 2;NetworkAdapter 2 Manufacturer;NetworkAdapter 2 Model;NetworkAdapter 2 Serial Number;SoundCard 1;SoundCard 1 Manufacturer;SoundCard 1 Model;SoundCard 1 Serial Number;SoundCard 2;SoundCard 2 Manufacturer;SoundCard 2 Model;SoundCard 2 Serial Number;Device Rate;Device Range;Processor Rate;Processor Range;RAM Rate;RAM Range;Data Storage Rate;Data Storage Range;Price;Benchmark RamSysbench (points)
-O48N2;;http://localhost/devices/O48N2;;named;O48N2;FooOrg;;;;;;;laptop-asustek_computer_inc-1001pxd-b8oaas048285-14:da:e9:42:f6:7b;Laptop;Netbook;b8oaas048285;1001pxd;asustek computer inc.;Mon Aug  2 10:27:27 2021;Workbench 11.0a2;2021-08-02 10:27:27.772331+02:00;;;;intel atom cpu n455 @ 2.66ghz;1024;238475;Processor 6: model intel atom cpu n455 @ 2.66ghz, S/N None;intel corp.;intel atom cpu n455 @ 2.66ghz;;1;2.667;6666.24;164.0803;;;;;;;;;RamModule 10: model None, S/N None;;;;1024;667;;;;;;;;;;;;;;;;;;;HardDrive 11: model hts54322, S/N e2024242cv86mm;hitachi;hts54322;e2024242cv86mm;238475;harddrive-hitachi-hts54322-e2024242cv86mm;e2024242cv86mm;238475;Workbench 11.0a2;Success;;EraseBasic;Shred;1:16:49;2021-08-02 10:27:27.163611+02:00;✓ – StepRandom 1:16:49;2018-07-03 11:15:22.257059+02:00;2018-07-03 12:32:11.843190+02:00;66.2;21.8;Workbench 11.0a2;Short;Failure;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;Motherboard 12: model 1001pxd, S/N eee0123456720;asustek computer inc.;1001pxd;eee0123456720;;;;;GraphicCard 7: model atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller, S/N None;intel corporation;atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller;;256;;;;;;NetworkAdapter 4: model ar9285 wireless network adapter, S/N 74:2f:68:8b:fd:c9;qualcomm atheros;ar9285 wireless network adapter;74:2f:68:8b:fd:c9;NetworkAdapter 5: model ar8152 v2.0 fast ethernet, S/N 14:da:e9:42:f6:7b;qualcomm atheros;ar8152 v2.0 fast ethernet;14:da:e9:42:f6:7b;SoundCard 8: model nm10/ich7 family high definition audio controller, S/N None;intel corporation;nm10/ich7 family high definition audio controller;;;;;;1.75;LOW;1.55;LOW;1.53;LOW;3.76;HIGH;52.50 €;15.7188
-J2MA2;;http://localhost/devices/J2MA2;;named;J2MA2;FooOrg;;;;;;;laptop-asustek_computer_inc-1001pxd-b8oaas048287-14:da:e9:42:f6:7c;Laptop;Netbook;b8oaas048287;1001pxd;asustek computer inc.;Mon Aug  2 10:27:27 2021;Workbench 11.0b11;2021-08-02 10:27:27.528832+02:00;;;;intel atom cpu n455 @ 1.66ghz;2048;558558;Processor 17: model intel atom cpu n455 @ 1.66ghz, S/N None;intel corp.;intel atom cpu n455 @ 1.66ghz;;1;1.667;6666.24;164.0803;;;;;;;;;RamModule 20: model None, S/N None;;;;1024;667;RamModule 21: model 48594d503131325336344350362d53362020, S/N 4f43487b;hynix semiconductor;48594d503131325336344350362d53362020;4f43487b;1024;667;;;;;;;;;;;;;HardDrive 22: model hts54322, S/N e2024242cv86hj;hitachi;hts54322;e2024242cv86hj;238475;harddrive-hitachi-hts54322-e2024242cv86hj;e2024242cv86hj;238475;Workbench 11.0b11;Success;;EraseBasic;Shred;1:16:49;2021-08-02 10:27:27.458348+02:00;✓ – StepRandom 1:16:49;2018-07-03 11:15:22.257059+02:00;2018-07-03 12:32:11.843190+02:00;66.2;21.8;Workbench 11.0b11;Extended;Failure;;;DataStorage 23: model wdc wd1600bevt-2, S/N wd-wx11a80w7430;western digital;wdc wd1600bevt-2;wd-wx11a80w7430;160041;datastorage-western_digital-wdc_wd1600bevt-2-wd-wx11a80w7430;wd-wx11a80w7430;160041;Workbench 11.0b11;Failure;;EraseBasic;Shred;0:45:36;2021-08-02 10:27:27.460573+02:00;✓ – StepRandom 0:45:36;2019-10-23 09:49:54.410830+02:00;2019-10-23 10:35:31.400587+02:00;41.6;17.3;Workbench 11.0b11;Short;Success;5293;195 days, 12:00:00;SolidStateDrive 24: model wdc wd1600bevt-2, S/N wd-wx11a80w7430;western digital;wdc wd1600bevt-2;wd-wx11a80w7430;160042;solidstatedrive-western_digital-wdc_wd1600bevt-2-wd-wx11a80w7430;wd-wx11a80w7430;160042;Workbench 11.0b11;Success;;EraseSectors;Badblocks;1:46:03;2021-08-02 10:27:27.464663+02:00;✓ – StepRandom 0:46:03,✓ – StepZero 1:00:00;2019-08-19 18:48:19.690458+02:00,2019-08-19 19:34:22.690458+02:00;2019-08-19 19:34:22.930562+02:00,2019-08-19 20:34:22.930562+02:00;41.1;17.1;Workbench 11.0b11;Short;Success;5231;194 days, 17:00:00;;;;;;;;;;;;;;;;;;;;;;;;;;Motherboard 25: model 1001pxd, S/N eee0123456789;asustek computer inc.;1001pxd;eee0123456789;;"auo ""auo""";auo lcd monitor;;GraphicCard 18: model atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller, S/N None;intel corporation;atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller;;256;;;;;;NetworkAdapter 15: model ar9285 wireless network adapter, S/N 74:2f:68:8b:fd:c8;qualcomm atheros;ar9285 wireless network adapter;74:2f:68:8b:fd:c8;NetworkAdapter 16: model ar8152 v2.0 fast ethernet, S/N 14:da:e9:42:f6:7c;qualcomm atheros;ar8152 v2.0 fast ethernet;14:da:e9:42:f6:7c;SoundCard 9: model usb 2.0 uvc vga webcam, S/N 0x0001;azurewave;usb 2.0 uvc vga webcam;0x0001;SoundCard 19: model nm10/ich7 family high definition audio controller, S/N None;intel corporation;nm10/ich7 family high definition audio controller;;1.72;LOW;1.31;LOW;1.99;LOW;3.97;HIGH;51.60 €;15.7188
+DHID;DocumentID;Public Link;Lots;Tag 1 Type;Tag 1 ID;Tag 1 Organization;Tag 2 Type;Tag 2 ID;Tag 2 Organization;Tag 3 Type;Tag 3 ID;Tag 3 Organization;Device Hardware ID;Device Type;Device Chassis;Device Serial Number;Device Model;Device Manufacturer;Registered in;Registered (process);Updated in (software);Updated in (web);Physical state;Trading state;Processor;RAM (MB);Data Storage Size (MB);Processor 1;Processor 1 Manufacturer;Processor 1 Model;Processor 1 Serial Number;Processor 1 Number of cores;Processor 1 Speed (GHz);Benchmark Processor 1 (points);Benchmark ProcessorSysbench Processor 1 (points);Processor 2;Processor 2 Manufacturer;Processor 2 Model;Processor 2 Serial Number;Processor 2 Number of cores;Processor 2 Speed (GHz);Benchmark Processor 2 (points);Benchmark ProcessorSysbench Processor 2 (points);RamModule 1;RamModule 1 Manufacturer;RamModule 1 Model;RamModule 1 Serial Number;RamModule 1 Size (MB);RamModule 1 Speed (MHz);RamModule 2;RamModule 2 Manufacturer;RamModule 2 Model;RamModule 2 Serial Number;RamModule 2 Size (MB);RamModule 2 Speed (MHz);RamModule 3;RamModule 3 Manufacturer;RamModule 3 Model;RamModule 3 Serial Number;RamModule 3 Size (MB);RamModule 3 Speed (MHz);RamModule 4;RamModule 4 Manufacturer;RamModule 4 Model;RamModule 4 Serial Number;RamModule 4 Size (MB);RamModule 4 Speed (MHz);DataStorage 1;DataStorage 1 Manufacturer;DataStorage 1 Model;DataStorage 1 Serial Number;DataStorage 1 Size (MB);Erasure DataStorage 1;Erasure DataStorage 1 Serial Number;Erasure DataStorage 1 Size (MB);Erasure DataStorage 1 Software;Erasure DataStorage 1 Result;Erasure DataStorage 1 Certificate URL;Erasure DataStorage 1 Type;Erasure DataStorage 1 Method;Erasure DataStorage 1 Elapsed (hours);Erasure DataStorage 1 Date;Erasure DataStorage 1 Steps;Erasure DataStorage 1 Steps Start Time;Erasure DataStorage 1 Steps End Time;Benchmark DataStorage 1 Read Speed (MB/s);Benchmark DataStorage 1 Writing speed (MB/s);Test DataStorage 1 Software;Test DataStorage 1 Type;Test DataStorage 1 Result;Test DataStorage 1 Power on (hours used);Test DataStorage 1 Lifetime remaining (percentage);Test DataStorage 1 Power on hours;DataStorage 2;DataStorage 2 Manufacturer;DataStorage 2 Model;DataStorage 2 Serial Number;DataStorage 2 Size (MB);Erasure DataStorage 2;Erasure DataStorage 2 Serial Number;Erasure DataStorage 2 Size (MB);Erasure DataStorage 2 Software;Erasure DataStorage 2 Result;Erasure DataStorage 2 Certificate URL;Erasure DataStorage 2 Type;Erasure DataStorage 2 Method;Erasure DataStorage 2 Elapsed (hours);Erasure DataStorage 2 Date;Erasure DataStorage 2 Steps;Erasure DataStorage 2 Steps Start Time;Erasure DataStorage 2 Steps End Time;Benchmark DataStorage 2 Read Speed (MB/s);Benchmark DataStorage 2 Writing speed (MB/s);Test DataStorage 2 Software;Test DataStorage 2 Type;Test DataStorage 2 Result;Test DataStorage 2 Power on (hours used);Test DataStorage 2 Lifetime remaining (percentage);Test DataStorage 2 Power on hours;DataStorage 3;DataStorage 3 Manufacturer;DataStorage 3 Model;DataStorage 3 Serial Number;DataStorage 3 Size (MB);Erasure DataStorage 3;Erasure DataStorage 3 Serial Number;Erasure DataStorage 3 Size (MB);Erasure DataStorage 3 Software;Erasure DataStorage 3 Result;Erasure DataStorage 3 Certificate URL;Erasure DataStorage 3 Type;Erasure DataStorage 3 Method;Erasure DataStorage 3 Elapsed (hours);Erasure DataStorage 3 Date;Erasure DataStorage 3 Steps;Erasure DataStorage 3 Steps Start Time;Erasure DataStorage 3 Steps End Time;Benchmark DataStorage 3 Read Speed (MB/s);Benchmark DataStorage 3 Writing speed (MB/s);Test DataStorage 3 Software;Test DataStorage 3 Type;Test DataStorage 3 Result;Test DataStorage 3 Power on (hours used);Test DataStorage 3 Lifetime remaining (percentage);Test DataStorage 3 Power on hours;DataStorage 4;DataStorage 4 Manufacturer;DataStorage 4 Model;DataStorage 4 Serial Number;DataStorage 4 Size (MB);Erasure DataStorage 4;Erasure DataStorage 4 Serial Number;Erasure DataStorage 4 Size (MB);Erasure DataStorage 4 Software;Erasure DataStorage 4 Result;Erasure DataStorage 4 Certificate URL;Erasure DataStorage 4 Type;Erasure DataStorage 4 Method;Erasure DataStorage 4 Elapsed (hours);Erasure DataStorage 4 Date;Erasure DataStorage 4 Steps;Erasure DataStorage 4 Steps Start Time;Erasure DataStorage 4 Steps End Time;Benchmark DataStorage 4 Read Speed (MB/s);Benchmark DataStorage 4 Writing speed (MB/s);Test DataStorage 4 Software;Test DataStorage 4 Type;Test DataStorage 4 Result;Test DataStorage 4 Power on (hours used);Test DataStorage 4 Lifetime remaining (percentage);Test DataStorage 4 Power on hours;Motherboard 1;Motherboard 1 Manufacturer;Motherboard 1 Model;Motherboard 1 Serial Number;Display 1;Display 1 Manufacturer;Display 1 Model;Display 1 Serial Number;GraphicCard 1;GraphicCard 1 Manufacturer;GraphicCard 1 Model;GraphicCard 1 Serial Number;GraphicCard 1 Memory (MB);GraphicCard 2;GraphicCard 2 Manufacturer;GraphicCard 2 Model;GraphicCard 2 Serial Number;GraphicCard 2 Memory (MB);NetworkAdapter 1;NetworkAdapter 1 Manufacturer;NetworkAdapter 1 Model;NetworkAdapter 1 Serial Number;NetworkAdapter 2;NetworkAdapter 2 Manufacturer;NetworkAdapter 2 Model;NetworkAdapter 2 Serial Number;SoundCard 1;SoundCard 1 Manufacturer;SoundCard 1 Model;SoundCard 1 Serial Number;SoundCard 2;SoundCard 2 Manufacturer;SoundCard 2 Model;SoundCard 2 Serial Number;Device Rate;Device Range;Processor Rate;Processor Range;RAM Rate;RAM Range;Data Storage Rate;Data Storage Range;Price;Benchmark RamSysbench (points)
+O48N2;;http://localhost/devices/O48N2;;named;O48N2;FooOrg;;;;;;;laptop-asustek_computer_inc-1001pxd-b8oaas048285-14:da:e9:42:f6:7b;Laptop;Netbook;b8oaas048285;1001pxd;asustek computer inc.;Tue Nov 23 15:17:49 2021;Workbench 11.0a2;2021-11-23 15:17:50.072662+01:00;;;;intel atom cpu n455 @ 2.66ghz;1024;238475;Processor 6: model intel atom cpu n455 @ 2.66ghz, S/N None;intel corp.;intel atom cpu n455 @ 2.66ghz;;1;2.667;6666.24;164.0803;;;;;;;;;RamModule 10: model None, S/N None;;;;1024;667;;;;;;;;;;;;;;;;;;;HardDrive 11: model hts54322, S/N e2024242cv86mm;hitachi;hts54322;e2024242cv86mm;238475;harddrive-hitachi-hts54322-e2024242cv86mm;e2024242cv86mm;238475;Workbench 11.0a2;Success;;EraseBasic;Shred;1:16:49;2021-11-23 15:17:49.696033+01:00;✓ – StepRandom 1:16:49;2018-07-03 11:15:22.257059+02:00;2018-07-03 12:32:11.843190+02:00;66.2;21.8;Workbench 11.0a2;Short;Failure;;;0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;Motherboard 12: model 1001pxd, S/N eee0123456720;asustek computer inc.;1001pxd;eee0123456720;;;;;GraphicCard 7: model atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller, S/N None;intel corporation;atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller;;256;;;;;;NetworkAdapter 4: model ar9285 wireless network adapter, S/N 74:2f:68:8b:fd:c9;qualcomm atheros;ar9285 wireless network adapter;74:2f:68:8b:fd:c9;NetworkAdapter 5: model ar8152 v2.0 fast ethernet, S/N 14:da:e9:42:f6:7b;qualcomm atheros;ar8152 v2.0 fast ethernet;14:da:e9:42:f6:7b;SoundCard 8: model nm10/ich7 family high definition audio controller, S/N None;intel corporation;nm10/ich7 family high definition audio controller;;;;;;1.75;LOW;1.55;LOW;1.53;LOW;3.76;HIGH;52.50 €;15.7188
+J2MA2;;http://localhost/devices/J2MA2;;named;J2MA2;FooOrg;;;;;;;laptop-asustek_computer_inc-1001pxd-b8oaas048287-14:da:e9:42:f6:7c;Laptop;Netbook;b8oaas048287;1001pxd;asustek computer inc.;Tue Nov 23 15:17:50 2021;Workbench 11.0b11;2021-11-23 15:17:50.072682+01:00;;;;intel atom cpu n455 @ 1.66ghz;2048;558558;Processor 17: model intel atom cpu n455 @ 1.66ghz, S/N None;intel corp.;intel atom cpu n455 @ 1.66ghz;;1;1.667;6666.24;164.0803;;;;;;;;;RamModule 20: model None, S/N None;;;;1024;667;RamModule 21: model 48594d503131325336344350362d53362020, S/N 4f43487b;hynix semiconductor;48594d503131325336344350362d53362020;4f43487b;1024;667;;;;;;;;;;;;;HardDrive 22: model hts54322, S/N e2024242cv86hj;hitachi;hts54322;e2024242cv86hj;238475;harddrive-hitachi-hts54322-e2024242cv86hj;e2024242cv86hj;238475;Workbench 11.0b11;Success;;EraseBasic;Shred;1:16:49;2021-11-23 15:17:50.000926+01:00;✓ – StepRandom 1:16:49;2018-07-03 11:15:22.257059+02:00;2018-07-03 12:32:11.843190+02:00;66.2;21.8;Workbench 11.0b11;Extended;Failure;;;0;DataStorage 23: model wdc wd1600bevt-2, S/N wd-wx11a80w7430;western digital;wdc wd1600bevt-2;wd-wx11a80w7430;160041;datastorage-western_digital-wdc_wd1600bevt-2-wd-wx11a80w7430;wd-wx11a80w7430;160041;Workbench 11.0b11;Failure;;EraseBasic;Shred;0:45:36;2021-11-23 15:17:50.003241+01:00;✓ – StepRandom 0:45:36;2019-10-23 09:49:54.410830+02:00;2019-10-23 10:35:31.400587+02:00;41.6;17.3;Workbench 11.0b11;Short;Success;5293;195 days, 12:00:00;4692;SolidStateDrive 24: model wdc wd1600bevt-2, S/N wd-wx11a80w7430;western digital;wdc wd1600bevt-2;wd-wx11a80w7430;160042;solidstatedrive-western_digital-wdc_wd1600bevt-2-wd-wx11a80w7430;wd-wx11a80w7430;160042;Workbench 11.0b11;Success;;EraseSectors;Badblocks;1:46:03;2021-11-23 15:17:50.006983+01:00;✓ – StepRandom 0:46:03,✓ – StepZero 1:00:00;2019-08-19 18:48:19.690458+02:00,2019-08-19 19:34:22.690458+02:00;2019-08-19 19:34:22.930562+02:00,2019-08-19 20:34:22.930562+02:00;41.1;17.1;Workbench 11.0b11;Short;Success;5231;194 days, 17:00:00;4673;;;;;;;;;;;;;;;;;;;;;;;;;;;Motherboard 25: model 1001pxd, S/N eee0123456789;asustek computer inc.;1001pxd;eee0123456789;;"auo ""auo""";auo lcd monitor;;GraphicCard 18: model atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller, S/N None;intel corporation;atom processor d4xx/d5xx/n4xx/n5xx integrated graphics controller;;256;;;;;;NetworkAdapter 15: model ar9285 wireless network adapter, S/N 74:2f:68:8b:fd:c8;qualcomm atheros;ar9285 wireless network adapter;74:2f:68:8b:fd:c8;NetworkAdapter 16: model ar8152 v2.0 fast ethernet, S/N 14:da:e9:42:f6:7c;qualcomm atheros;ar8152 v2.0 fast ethernet;14:da:e9:42:f6:7c;SoundCard 9: model usb 2.0 uvc vga webcam, S/N 0x0001;azurewave;usb 2.0 uvc vga webcam;0x0001;SoundCard 19: model nm10/ich7 family high definition audio controller, S/N None;intel corporation;nm10/ich7 family high definition audio controller;;1.72;LOW;1.31;LOW;1.99;LOW;3.97;HIGH;51.60 €;15.7188
diff --git a/tests/test_documents.py b/tests/test_documents.py
index 9e86acfe..fa70b636 100644
--- a/tests/test_documents.py
+++ b/tests/test_documents.py
@@ -301,10 +301,10 @@ def test_export_extended(app: Devicehub, user: UserClient):
     assert fixture_csv[2][22:82] == export_csv[2][22:82], 'Computer information are not equal'
     assert fixture_csv[2][83] == export_csv[2][83], 'Computer information are not equal'
     assert fixture_csv[2][86:106] == export_csv[2][86:106], 'Computer information are not equal'
-    assert fixture_csv[2][108] == export_csv[2][108], 'Computer information are not equal'
-    assert fixture_csv[2][111:131] == export_csv[2][111:131], 'Computer information are not equal'
-    assert fixture_csv[2][131] == export_csv[2][131], 'Computer information are not equal'
-    assert fixture_csv[2][136:] == export_csv[2][136:], 'Computer information are not equal'
+    assert fixture_csv[2][109] == export_csv[2][109], 'Computer information are not equal'
+    assert fixture_csv[2][112:133] == export_csv[2][112:133], 'Computer information are not equal'
+    assert fixture_csv[2][135] == export_csv[2][135], 'Computer information are not equal'
+    assert fixture_csv[2][138:] == export_csv[2][138:], 'Computer information are not equal'
 
 
 @pytest.mark.mvp
diff --git a/tests/test_snapshot.py b/tests/test_snapshot.py
index 130413c8..471181a0 100644
--- a/tests/test_snapshot.py
+++ b/tests/test_snapshot.py
@@ -146,6 +146,28 @@ def test_snapshot_update_timefield_updated(user: UserClient):
     assert pc1['updated'] != snapshot['device']['updated']
 
 
+@pytest.mark.mvp
+@pytest.mark.usefixtures(conftest.app_context.__name__)
+def test_snapshot_power_on_hours(user: UserClient):
+    """
+    Tests for check if one computer have the time mark updated when one component of it is updated
+    """
+    snap, _ = user.post(file('asus-eee-1000h.snapshot.bug1857'), res=Snapshot)
+    device = m.Device.query.filter_by(id=snap['device']['id']).one()
+
+    for c in device.components:
+        if c.type == 'HardDrive':
+            hdd = c
+            break
+
+    for ac in hdd.actions:
+        if ac.type == 'TestDataStorage':
+            test_data_storage = ac
+            break
+
+    assert test_data_storage.lifetime.total_seconds()/3600 == test_data_storage.power_on_hours
+
+
 @pytest.mark.mvp
 def test_snapshot_component_add_remove(user: UserClient):
     """Tests adding and removing components and some don't generate HID.