【Note】 These battery connector is 2.54pin JST-XH-2P plug
【QUALITY ASSURANCE】The 3.7V 4400mAh rechargeable li-ion battery strictly controls the consistency of voltage, internal resistance(20mΩ) and capacity to ensure the super stability and durability of the product, longer discharge time and more cycles. After 1000 cycles of normal charge and discharge, it can maintain more than 75% capacity.
【Protection】These items all add protection circuit board in each battery.