BOS 18V 10-Cell 18650 BMS – Complete DIY Battery Kit (Compatible Style)

DIY 18V battery pack kit compatible with BOS‑style tools. This kit lets you build a 10‑cell pack (5S2P layout, 18V nominal) using 18650 cells, a protection/BMS board, and a purpose‑fit housing.

What’s included

• BOS‑style battery shell/adapter
• BMS/PCM (protection & balancing)
• Nickel strip & wiring set
• Hardware & basic guide

Options

• Complete Kit (No Cells): Shell + BMS + nickel + hardware. Add your own 18650 cells.
• Complete Kit + Cells (Unassembled): Same kit plus brand‑new matched cells included. Buyer assembles pack.

Specs

• Configuration: 5S (18V nominal) using 10× 18650 cells (5S2P)
• Protections: over‑charge, over‑discharge, over‑current, short‑circuit; cell balancing
• Use: aftermarket/compatible style for BOS‑class tools and chargers

Safety: DIY battery assembly requires proper tools and experience. Verify polarity, insulate welds, and test before use.

Compatibility note: Aftermarket/compatible style kit. Not affiliated with or endorsed by any OEM brand.