4S 20A Lithium Battery 18650 Charger PCB BMS Protection Board
This board is a Lithium battery protection board or a battery management system that is used for 3.7V lithium-ion batteries. The board is square-shaped and portable which makes it easy to store and transport. The board offers overcharging and over-discharging protection along with short circuit protection as well as over-current protection. We can use this board to charge the lithium-ion batteries as well provided that they are rechargeable. We can combine the 4X18650 electric cell along with this BMS system to make a battery pack having a voltage rating of up to 15V DC. Four 18650 batteries can be connected simultaneously to the HX-4S-BM20 module.
BMS solder instruction:
b+ connected battery positive; b1 the connect point between Battery 1 and Battery 2 b2 connect the point between Battery2 and battery 3 b3 connect the point between Battery 3 and Battery 4 b- connect to Battery negative end p- + connection charge/discharge positive; p- connection charge/discharge negative 4sLi-ion 18650, licoo2, limn2o4, li(NiCoMn)o2 rechargeable batteries 4s lipo rechargeable batteries.
Application:
- Battery pack
- Consumer electronics product 12V voltage rating
- Power supply
- Power bank and charger
Features/Specs:Â
- Model HX: 4S-BM20
- Maximum Working Current: 15A
- Maximum Instantaneous Current: 20A
- Overcharge voltage range: 4.25 ± 0.05V
- Over-discharge voltage range: 2.5 ± 0.05V
- Quiescent current: <30uA
- Charging voltage range: 16.8V
- Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms
- Maximum Peak Current: 20A, Maximum Working Current: 10A, Static current: less than 8uA
- Resistance: less than 4mΩ; 4 series 18650 battery 16.8V 16V 14.8V 14.8V (Li-ion 18650 or li-ion battery rated voltage) 16.8V (Li-ion battery full charge voltage) 14.4V ( Lipo battery pack rated voltage)
- Short circuit protection: protect and automatic recovery, Over-discharge protection: yes, over-current-protection: yes
- Length: 36mm
- Width: 36mm
- Height: 3mm
- Weight: 5gm
Package Includes:
- 1 x 4S 20A Lithium Battery 18650 Charger PCB BMS Protection Board
Note: Product Images are shown for illustrative purposes only and may differ from the actual product
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