3PCS 18650 Lithium Battery Multi-Cell 2S 3S 4S Type-C to 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V （2S-4A）

Product Description
Multi-Cell 2S 3S 4S Type-C To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium BatteryDescription:1: Diverse choices, customers can choose what they need according to different needs2: Widely used3: High safety performance4: Simple and easy to understand and operate5: Battery overvoltage protectionParameter:2-Cell(2S) 8.4V Version:Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 8.4VCharging current : 0.55A(1A Version);1.1A(2A Version);2.2A(4A Version)3-Cell(3S) 12.6V Version：Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 12.6VCharging current : 0.37A(1A Version);0.74A(2A Version);1.48A(4A Version)4-Cell(4S) 16.8V Version:Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 16.8VCharging current : 0.28A(1A Version);0.56A(2A Version);1.12A(4A Version)Feature:Switching Frequency up to 1MHzQuasi-CV mode to Compensate for the Voltage Loss on Battery Internal Resistance and Trace ResistanceAutomatic RechargeProtection for Battery Voltage Being Low than Input and Short BatteryGood adaptability to Input Supply with Limited Driving CapabilityBattery Overvoltage ProtectionLed indicator : ”CR” LED is charge status indicator”OK” LED is fully charged OR Constant voltage mode;Operating Ambient Temperature－40℃ to ＋85℃Size 39mm x 18mm x 6.3mmWeight : 5g