1A Battery Charger Upgrade Module Board with 7 4V 3600mAh LIPO Battery for FRSKY X12SThe item only uses for Frsky X12S remote controller others cant be fit 50 backlight it can be continuously used for 10 hours Specification Battery charger module Input voltage 9 20VInput current 0 5 1AInput capacity 9WCharger current about 1ASize 36 31mmWeight 6g2S battery charger mode in default if changing the charger mode it has to change the related battery 7 4V 3600mAh lipo battery Model 2S4P 14500Can material Nickel plated steelTypical Capacity 3600mAhNominal Voltage 7 4VMax Charge Voltage 8 4VDischarge Cut off Voltage 6VMax Charge Current 1CSize 100mm 58mm 15mmWeight 167gWith 15KG presure relief valveUsing high performance protection board to avoid overcharge and over discharge discharge protection voltage 5 7VLED signal charge indicator light Green LED normally on is chargingGreen LED off charging completedGreen LED flashing there is an error please check the connection line to avoid short circuitCharger user guidePackage included 1 charger module board1 7 4V 3600mAh lipo battery