Anker SOLIX C800 Review
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Review By James Ndungu
- last updated 09/12/2026
The Anker SOLIX C800 returns 668Wh of its 768Wh rated capacity, an 87% result, behind a 1,200W inverter with 1,600W SurgePad. HyperFlash charging fills it in 58 minutes. High-end price tier, strong output for the capacity.
My Quick Verdict
Twelve hundred watts continuous from a 768Wh pack is the highest output-to-capacity ratio of anything at this size in our data, meaning the unit starts appliances well beyond what its capacity suggests.
HyperFlash charging refills the whole pack in 58 minutes at 790 watts, with three profiles in the Anker app so you can charge gently when there is no hurry.
An 87% conversion returns 668Wh, which is a good result and slightly ahead of the Bluetti AC70 at the same rated capacity.
The transfer is 20 millisecond EPS. It arms itself, which is the harder half of the problem, but 20 milliseconds is outside the band where a computer reliably survives a cut.
Best for: Camping and van use where a high inverter rating matters more than capacity, and short household backup.
Not for: Protecting computers, or anyone expecting to expand capacity later.
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