Features: ThislinearchargerboardallowsyoutochargelipobatteryusingeitheraMiniUSBconnectorora4.5V-5.5Vinput. Specifications: Red:Charging Green:FullyCharged InputVoltage:4.5V-5.5V ChargeVoltage:4.2V ChargingPrecision:1.5% Dimensions:22mmx16mm NetWeight:3g Color:blue PackageIncluded: 10x5VMiniUSB1ATP4056LithiumBatteryModule