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AJMRTC 2S Li-ion BMS Protection Board, 7.4V 2 Series Lithium Battery Charger Protection Module, 4A Overcharge Overdischarge Overcurrent Protection Board for 2-Cell Lithium Battery Pack DIY Power Proje
- - 2S 7.4V lithium-ion BMS protection board for 2 series li-ion battery packs, rated 4A continuous working current
- - Multi-protection functions including overcharge, overdischarge and overcurrent protection to safeguard lithium cells safely
- - Prevents battery damage caused by abnormal voltage and current, extends service life of 2S lithium battery packs
- - Compact PCB design, simple wiring for assembling battery packs, portable power supply and DIY energy storage projects
- - Ideal for 2S lithium battery assembly, small power bank, lighting equipment and low-voltage power device modification
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Overview
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AJMRTC 2S lithium battery BMS protection board is designed for 2-series 7.4V li-ion battery packs with 4A rated current. It integrates multiple safety protection mechanisms: overcharge protection stops charging once cell voltage reaches upper limit; overdischarge protection cuts off output to avoid deep discharge; overcurrent protection triggers under abnormal heavy load. These protections effectively prevent lithium battery damage and safety risks. This compact board is easy to connect with 2 series lithium cells. It is widely used to build custom battery packs, portable power supplies, LED lighting and other low-voltage DIY power equipment. Please confirm the battery cell type and wiring sequence before power on.
- Brand: AJMRTC
- Product: 2S Li-ion BMS Protection Board
- Series: 2 Series (2S)
- Nominal Voltage: 7.4V
- Rated Current: 4A
- Protection: Overcharge, Overdischarge, Overcurrent
- Compatible Battery: Li-ion Lithium Cells
- Application: DIY 2S Battery Pack, Portable Power, Lighting Power Supply
- Feature: Multi Safety Protection, Compact PCB
- Package Includes: 1 × 2S 7.4V BMS Protection Board
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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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