ITEM NAME:TP5000 3.6v/4.2v Charger Module Lithium ion LiFePO4 Battery Charging 3 Gw.High-quality battery: TP5000 lithium ion battery, 2A current 4 2/3, high quality. 6V can be switched. The charging is fast: 2A version is the ultimate performance version of TP5000, due to the larger current, the heat will- be relatively large, but the fastestcharging speed.