Attention: The positive pole of the battery is connected to B+ and the negative pole is connected to B-, do not reverse it. If it is reversed, it will burn out Dual Output Current: 5V 2.4AConstant Current: 2.4A; overcharge protection, overdischarge protection, short circuit protection, constant current.Suggest Working Conditions:Max continuous charge/discharge current 1.5/2.4A,working temperature: -545. Charging cable: support three USB data cable charging, including for Iphone and Android. Size: 6.5 * 2.5 * 0.1cm;