Our Mains USB charger has high Quality and tested Kit Which is design to prevent your battery from overcharging and short-circuiting. The charger has fast charging time it can completely charge your battery in 1-2 hours. The most compatible battery for this charger is also included in this battery Pack. Our battery has Lithium-Ion battery Technology. It has High Quality and Tested IC Chips that ensures the maximum power of a battery. The battery also has high Quality and Tested Premium Cells.