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CTolity Store via [aliexpress.com] has CTolity 24V 100Ah LiFePO4 Battery 15000 Cycle 100A BMS UP 2560W for Solar, RV, Camping, Off-grid living UL1973 on sale for $248 when you Apply $50 off Coupon at checkout: USAFF50. + Free Shipping from US warehouse.

Designed for RV, solar and off-grid storage w/ an integrated 100A battery management system (BMS).