ماژول محافظ شارژ باتری لیتیومی 3 سل 20A

Features
3S 12.6V Li-ion Lithium Battery 18650 Charger Protection PCB Board
Suitable range: For nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries)
Product Size: 59mmx20mm
Charging voltage: 12.6V
Maximum output current: 20A
Maximum output power / charging power: 252W
Precautions
1.Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip.
2.After connection, it need to first charge activation, then will have the output.
Attention
Do not mix the good battery and poor battery to use.
The internal resistance of 3 battery capacity are closer will be better.
Please buyers know the professional knowledge of this module before buying
Note : more than 3A current discharge products rate is more than 3C Ratio calculation formula : 1C rate of the battery , 2000 capacity is equal to 2AH 1 2A maximum working current . 3C ratio battery , 2000 capacity is equal to 2AH * 3 = 6A maximum working current . In use battery heats is ratio is not applicable to , this kind of situatic can’t use for a long time , the battery will soon be damaged
Note
Note 1 : after connected line need to recharge , just can have output
Note 2 : 3 series battery , please make sure that each set of battery voltage , if not , please separate with each set of batteries in series . Discharge test , the battery voltage drops quickly is a bad battery .
Note : don’t put the good cells and in bad ! Three groups of battery capacity / internal resistance as close as possible ! ( 2 + 1 good battery , the use effect of poor battery = the use effect of three bad battery ).

Precautions
1. Pay attention to the input and output voltage and load current, do not use more than the power of the module and cause it to burn.
2. This module has an anti-static protection circuit, please do not touch it with your hands when working on the module to avoid damaging it.