10 PCS 1S 3.7V 18650 BMS Board 3A w/ Nickel

Safe and simple 3A protection. 10 PCS, This 1S (single‑cell) 3.7V BMS/PCM board provides reliable protection for 18650 lithium‑ion cells. Pre‑attached nickel strips make spot‑welding quick and clean for DIY power banks and compact battery projects.

Key Features

• Configuration: 1S (single cell, 3.7V nominal)
• Rated current: 3A continuous
• Protections: Over‑charge, over‑discharge, over‑current, short‑circuit
• Form factor: Ultra‑slim PCB with extended nickel strips
• Use cases: DIY power banks, flashlights, compact single‑cell projects

Tip: Always verify polarity before welding. Use quality 18650 cells for best performance.

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