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AJMRTC 5S 18/21V 20A Li-ion Battery Pack BMS Charging Protection Board, DIY Replacement PCB Circuit Board for Makita 18V Lithium Battery Pack, Overcharge Over-Discharge Short Circuit Protection
- - 5S 18V/21V 20A BMS protection board, custom designed as replacement PCB for Makita 18V lithium battery pack
- - Comprehensive multi-protection: overcharge, over-discharge, over-current, short circuit and temperature protection for battery safety
- - 20A continuous discharge current, stable power output for power tools and DIY lithium battery assembly
- - Real-time cell voltage monitoring, balances each battery cell to extend the whole battery pack lifespan
- - Easy to install and solder, ideal for battery pack repair, replacement and homemade power tool battery projects
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AJMRTC 5S 18/21V 20A lithium battery BMS protection board serves as a replacement PCB for Makita 18V lithium battery packs. It is made for 5-series li-ion battery assembly and repair. This board provides complete protection against overcharging, over-discharging, over-current, short-circuit and overheating hazards. It monitors every cell voltage in real time to maintain balanced performance and prevent cell damage. It supports continuous 20A discharge current to meet high power demands of power tools. Perfect for repairing old Makita battery packs or building custom 5S lithium battery packs for power tool applications.
- Brand: AJMRTC
- Configuration: 5S
- Rated Voltage: 18V / 21V
- Continuous Discharge Current: 20A
- Compatible: Replacement for Makita 18V Lithium Battery Pack
- Protection: Overcharge, Over-Discharge, Over-Current, Short Circuit, Over-Temp
- Battery Type: Li-ion Lithium Battery
- Application: Battery Pack Repair, DIY Power Tool Battery Assembly
- Operating Temperature: -20 ~ 60
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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