Round 1S 3.7V 2A Lithium 18650 BMS Protection Board

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Sold By: HatchnHackSKU: F11-04

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Its a Battery charger controller module it has an eight-pin IC 8205A is an IC it includes high-accuracy voltage detection circuits and delay circuits in single-use, making it possible for users to monitor the status of 4-series or 5-series cell lithium-ion rechargeable battery. It has DW01 IC, The DW01 battery protection IC is designed to protect lithium-ion/polymer batteries from damage or degrading the lifetime due to overcharge, over-discharge, and/or overcurrent for one-cell lithium-ion/polymer battery-powered systems, such as cellular phones. Over-charge, over-discharge, over-current, and short circuit protection are all included in the lithium-ion charge protection circuit. Built-in three-stage over-current detection circuit for 3.7 V lithium-ion batteries of various shapes. This is a high-precision voltage detection circuit with a low standby current consumption. 


  • It has two IC 
  • Small size
  • Battery Protection 
Model 3.7V Lithium ion BMS
Type Battery Charger Controller 
Voltage 3.7V
Current 2A
No of IC used 2
IC used
Diameter 16mm
Thickness 1.8mm

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