2PCS 12V 7Ah LiFePO4 Battery, Built-in BMS, 4000+ Deep Cycle Rechargeable Battery, Maintenance Free Home Energy Storage And Off Grid Application Battery, Suitable For RV, Camping, Golf Cart, Toy Car

Outstanding Performance: LiFePO4 batteries are crafted from new A-grade batteries, boasting high energy density, long cycle life, excellent safety performance, lightweight, compact size, and no memory effect. Comperhension Performace: The lithium battery features a built-in Battery Management System (BMS) that shields it from overcharging, deep discharging, overloading, overheating, short circuits, low self-discharge rate, and ensures voltage balance for each battery cell during charge and discharge. Expendable Storage:LiFePO4 batteries can be connected in parallel or series for expanded capacity. It allows for the connection of 4 batteries in parallel or series.