Anker SOLIX BP3800 Expansion Battery - 3840Wh Storage | LFP | For SOLIX F3800Features 3,840Wh durable LFP battery Effortless expansion for Anker SOLIX F3800 3,000 charging cycles and a 10 year lifespan 5 year worry free warranty BP3800 Expansion Battery Specifications Model Anker SOLIX BP3800 Battery type LFP (Lithium Iron Phosphate) Capacity 3,840Wh Lifespan 10 years Life cycles 3,000 cycles Warranty 5 years Compatibility Anker SOLIX F3800 Expansion capability Seamless expansion Output voltage 51. 2V Output current 75A