【What it does】:The polymer ternary lithium battery fast charging board converts 5V to 4.2V/4.35V, with a maximum current of 3A, to charge your lithium battery equipment.(note that it is not suitable for 3.2V lithium iron phosphate batteries).
【Chip features】: The IP2312 main control chip adopts a complete CC/CV charging mode, and automatically changes different charging modes under different battery voltages.
【Specifications】: Input voltage: 4.5~5.5V; charging cut-off voltage: 4.2V/4.35V; charging current: 3A; conversion efficiency: 3A 93%, 2A 94%, 1A 95%; indicator light: yes (red is the working indicator light, blue is full indicator light).
【Current adjustment instructions】: Default 3A, remove the resistor 2A, and replace it with a 135k resistor 1A.
【Applications】:Suitable for charging most polymer ternary lithium batteries, 18650 lithium batteries and other types of batteries.