A 3.2V 20Ah LiFePO4 battery cell is a high-capacity lithium iron phosphate rechargeable battery designed for high-drain applications. Its key advantages include long cycle life (2,000–5,000 cycles), thermal stability, and eco-friendliness. Ideal for DIY battery… How to Build a DIY Battery Pack with 3.2V 20Ah LiFePO4 Cells?