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The Anker Solix BP3800 is a 3,840Wh expansion battery for Anker's Solix F3800 portable power station. It uses lithium iron phosphate (LFP) cells, which are rated for more charge cycles and are more heat-tolerant than typical NMC packs. It adds capacity to an existing F3800 rather than working as a standalone power station. The best new price is $1,799.99 at Adorama as of November 7, 2026, and only one store lists it new.
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Lowest price we've seen: $1,799.99 on Nov 7 at Adorama. Tracked across 1 store since Nov 7.
Owners of the Solix F3800 treat the BP3800 as the way to stretch backup runtime without buying a second station. They like the LFP cells and the simple stacking, and mostly complain about the weight and the cost of adding capacity.