6 Lifepo4. 3.2v 7Ah 32700 Rechargeable Battery for Battery Electric Bicycles.

The quality of the factory is durable and safe. Higher energy density and lighter weight. Internal Resistance Shenzhen XinShengLi Co., Ltd Battery Specification. Battery Type Battery Weight Can be 3s 4s 8s 10s 13s, etc.

eBay