Dweii 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 1

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 Battery Description: 1: Diverse Choices, Customers Can Choose What They Need According To Different Needs 2: Widely Used 3: High Safety Performance 4: Simple And Easy To Understand And Operate 5: Battery Overvoltage Protection Parameter: 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 : 8.4V Charging 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 : 12.6V Charging 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 : 16.8V Charging Current : 0.28A(1A Version);0.56A(2A Version);1.12A(4A Version) Feature: Switching Frequency Up To 1Mhz Quasi-Cv Mode To Compensate For The Voltage Loss On Battery Internal Resistance And Trace Resistance Automatic Recharge Protection For Battery Voltage Being Low Than Input And Short Battery Good Adaptability To Input Supply With Limited Driving Capability Battery Overvoltage Protection Led 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 6.3Mm Weight : 5G