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BMS 40A 18650 Lithium Battery Controller

$4.00
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🔋 Supports 4S (4 x 18650) lithium-ion battery packs 

⚙️ Up to 40A discharge current – perfect for e-bikes, power tools, and high-load 

🛡️ Built-in protection:

  • Overcharge
  • Over-discharge
  • Overcurrent
  • Short-circuit

🔄 Automatic cell balancing – improves battery life & stability

📏 Compact PCB – fits easily into tight battery pack designs

BMS 40A 18650 Lithium Battery Controller
BMS 40A 18650 Lithium Battery Controller
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