HJGHY 36 Volts Folding Electric Bike Battery 36V 10Ah 12Ah 15Ah 17.5Ah Rear Rack Lithium Ion Battery 48V 10Ah 12Ah 14Ah Luggage Rack Battery for Mountain Bicycle Motor,with Rear Rack,48V12Ah - WITHREARRACK-48V12AH-66069974

• [Rear Rack Battery Pack] 36V 48V 10Ah 12Ah 14Ah 15Ah 17.5Ah lithium battery fits for the motors of between 0-750W. Dimensions: 446*156*67mm, please check whether this size can be placed in your equipment. [Battery Management System] The smart BMS has to undertake a more accurate calculation of electricity, to ensure the service life of the li-ion battery, also protect the lithium battery from the damages of short-circuit, over-current, over-charge and over-discharge. [Useful Design] The outer layer is made of waterproof Aluminum alloy and ABS plastic material, rainy weather can riding. Replacement battery cover is waterproof, effectively protect the inner lithium ion cells.The LED battery level light can inform you of charging in time. [Long Battery Life]Comes with a 42v/54.6v 2A charger, it can be fully charge in 4~7 hours. Built-in high quality A grade lithium cell, battery cycle life up to 800-1000 times, life expectancy of portable rear rack battery up to 5 years. [Precautions] After receiving the package, please read the instructions carefully, check the battery power level, and fully charge it before the first time use. When charging, ensure that it is dry, free of flammable and explosive materials, and in a safe place