This battery pack features a built-in hidden battery and is suitable as a replacement battery for various types of folding electric bicycles (note that it must have the same battery shape and size), such as folding electric bicycle batteries with the same shape and size. This replacement built-in electric scooter battery pack is only compatible if its internal dimensions and discharge port position are the same 【 Pay attention to the size of electric bicycle batteries 】 There is 48V electric bicycle battery packs: 467*102*43mm,Before purchasing, please confirm if the size of the folding electric bicycle battery is suitable for your battery space to reduce unnecessary returns 【 48V14Ah 672Wh Lithium ion Battery Pack Parameters 】 Equipped with 30A BMS: high temperature protection, short circuit protection, charging overcurrent protection, discharging overcurrent protection. Maximum composition discharge current: 30A. Peak current: 90A, suitable for 48V controllers and 350W/500W/750W/1000W (0-1000W) motors 【 The charging cycle of lithium-ion battery pack exceeds 1000 times.】 Our battery pack is equipped with a DC charging port and a 5-pin output connector ensuring easy installation on electric bicycles.【Pack Includes】1 x 48v14Ah Lithium ion Battery pack, 2 x keys We are committed to providing high-quality products and good shopping experience Service -- We provide 24*7 hours online service, if you have any questions about the product, Please click "Get help with order" on the order page to leave us a message, we will reply asap! We also provide you with a 100% risk-free satisfaction guarantee. 12-month warranty This battery pack features a built-in hidden battery and is suitable as a replacement battery for various types of folding electric bicycles (note that it must have the same battery shape and size), such as folding electric bicycle batteries with the same shape and size. This replacement built-in electric scooter battery pack is only compatible if its internal dimensions and discharge port position are the same.