HX-2S-A2 Circular 2S 8.4V BMS 18650 Lithium Battery Protection Plate

2-Series (2S) Lithium Battery Management: Specialized protection board for 2-cell 18650 lithium-ion / LiPo battery packs operating at nominal 7.4V and peak 8.4V charging voltage.

Compact Circular Form Factor: Round PCB design fits inside cylindrical battery tubes, flashlights, and circular enclosure bases where rectangular BMS boards cannot sit flat.

5A Continuous Discharge Current: Delivers up to 5A continuous output current with up to 7A peak surge protection, making it ideal for compact portable devices and LED lighting.

Automated Multi-Protection Safety: Features integrated protection ICs providing instant hardware-level cutoffs for overcharging, over-discharging, overcurrent, and short circuits.

Solder-Friendly Terminal Layout: Clearly marked solder pads (B+, B-, MB, P+, P-) simplify precise cell balance connections during battery assembly.

Board Material: High-grade FR-4 glass epoxy printed circuit board with dual power MOSFETs and protection control IC.

Technical Specifications:

Series Configuration: 2S (2 Cells in series).

Board Shape: Circular / Round (HX-2S-A2).

Nominal / Max Voltage: 7.4V nominal / 8.4V max charge voltage.

Continuous Discharge Current: Up to 5A.

Board Color: Blue PCB.

Usage Advice: Connect the center balance tap wire (MB) accurately between Cell 1 and Cell 2 to ensure equal voltage monitoring.

Maintenance: Keep board clean, dry, and stored in anti-static packaging when not in use to avoid static damage.

Essential Round Enclosure Solution: Position as the ideal space-saving protection board for building circular 7.4V battery packs for headlamps, tactical flashlights, circular Bluetooth speakers, and custom handheld electronics.

Highlight Form-Factor Versatility: Emphasize how the circular profile allows seamless installation at the end of cylindrical battery packs without wasted space or awkward ribbon routing.

Recommended Cross-Sell Add-ons: Pair with 2S 10A 7.4V 18650 lithium battery protection board, 2S Li-ion 18650 7.4V 4A 2 series BMS Module, 18650 BMS Board 3S 25A Balanced 12.6V, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Hardware Battery Management System collection page as your specialized circular 2S protection plate option.