Feature: Charging method: Linear charge Charging current: 1A (Adjustable, must change the Resistance) Charging precision: 1.5% Input voltage: DC 4.5V-5.5V Full charge voltage: 4.2V Charging indicator:Blue Charging,Red Full Charge Input interface: Mini USB Operating Temperature: -10 ° C to +85 ° C Dimensions: 25x19mm 1 PCs 5V Mini USB 1A Lithium Battery Charging Board Module Full Charge 4.2VSKU: 161430419901$3.99PriceQuantityAdd to Cart