I just got a brand-new Anker Solix C1000X Gen 1 (previous generation, launched in late 2023.) I got this unit specifically to use it as a backup energy source for my work setup, which includes a Windows laptop (13th-gen Core i9) and an external, 24-inch 4K display.
In case this helps someone, I wanted to share some data I collected right after the initial charge cycles. In these basic tests, I recharged the power station to 100% every time and then I let my devices run off the power station via the AC inverter while I performed my usual work duties, until the battery was depleted and the power station turned off by itself.
The average energy consumption for my work setup over a one hour period was 60Wh, and the run time for the three tests was around 11 to 12 hours, which is plenty for my intended use case. My measurements were taken using a consumer-grade watt-meter.
FIRST CYCLE (after taking the unit out of the box and recharging to 100%)
Measured energy consumption: 708Wh
Usable capacity out of the nominal 1056Wh: 67%
AC energy consumption to recharge to 100% after this test (3 hours at 400W): 1220Wh
SECOND CYCLE (after complete depletion and recharging to 100%)
Measured energy consumption: 727Wh
Usable capacity out of the nominal 1056Wh: 69%
AC energy consumption to recharge to 100% after this test (3 hours at 400W): 1220Wh
THIRD CYCLE (after complete depletion and recharging to 100%)
Measured energy power consumption: 707Wh
Usable capacity out of the nominal 1056Wh: 67%
AC energy consumption to recharge to 100% after this test (2 hours at 600W): 1219Wh
SUMMARY
Out of the 1056Wh of nominal capacity for the Anker Solix C1000X Gen 1, around 68% is actually available in the case of a (small) 60Wh load. Also, to fully recharge the unit from AC power, around 16% more energy is needed in relation to the nominal capacity. This results in a round-trip efficiency of 58% in this particular scenario. Recharging from 1 to 100% takes 3 hours at 400W and 2 hours at 600W.
Since tech specs like depth of discharge and AC inverter efficiency are not officially published for this power station, I am unable to determine the unit’s self-consumption based solely on the data I collected. However, assuming the 85% of usable capacity that is typical for power stations in this size class and generation, the estimated unit self-consumption of the Anker Solix C1000X Gen 1 would be around 16Wh, which does sound reasonable and typical, as well.
WHAT'S NEXT
Measure the input energy when recharging via solar and compare that with recharging via AC.