IPARWA rear rack style lifepo4 battery for e-bike is a type of battery pack that can be mounted on the rear rack of an electric bicycle. It is made of lithium iron phosphate (LiFePO4) cells, which are safer, more durable and have a longer cycle life than other lithium-ion batteries. A rear rack style lifepo4 battery for e-bike can have up to 40 cells, which means it can provide a voltage of 48V and a capacity of 13.6Ah. This battery pack can power an e-bike motor with a power range of 250W to 1000W, depending on the current output of the battery management system (BMS). A rear rack style lifepo4 battery for e-bike comes with a 3A charger that can fully charge the battery in about 4 hours. It also has a LED indicator that shows the remaining battery level and a switch that can turn on or off the power output. A rear rack style lifepo4 battery for e-bike is suitable for short-distance riding, as it can offer a range of 20 to 30 miles, depending on the riding conditions and the motor power. A rear rack style lifepo4 battery for e-bike is a lightweight, compact and convenient battery option for electric bicycle riders.