Ryobi 18V Battery Rebuild Kit - 5S2P, 5S BMS, Nickel, Shell (No Cells)

Product: Ryobi 18V 10-Cell Battery Rebuild Kit – No Cells Included

This kit provides all the parts needed to rebuild a battery pack for Ryobi 18V ONE+ tools. Designed for experienced users who will install and manage their own lithium-ion cells (cells not included).

This is a compatible replacement kit. It is independently manufactured and is not an original Ryobi-branded product.

Included Components:

• Ryobi-compatible battery shell / housing
• 5S BMS board with protection & balancing circuits, for a 10-cell 5S2P pack
• Pre-cut nickel strips and wiring set
• Hardware & connector leads

Specifications:

• Configuration: 5S2P layout (10 cells: 5 in series, 2 in parallel)
• Cell format: 18650
• Nominal Voltage: ~18V (tool-class standard)
• Fits Ryobi 18V ONE+ tools and compatible chargers
• Protection Features: Over-charge, over-discharge, over-current, short-circuit, and cell-balancing functionality
• Final pack capacity depends entirely on the cells you install

What Is Not Included:

• Cells — you supply your own 18650 lithium-ion cells
• Charger
• Spot welder or assembly tools
• Power tool

Important Notes:

• This listing does not include cells. You must supply your own compatible 18650 lithium-ion cells.
• Assembly requires proper tools, knowledge of battery safety, correct wiring, and testing before use.
• Use only matching cells (type, capacity, brand, and charge level) to ensure safety and pack longevity.
• Please review all product photos carefully before ordering.

Shipping & Safety: Ships without any batteries, so standard shipping applies. No Hazmat handling needed. If cells are added after purchase, follow all applicable battery transport regulations.

Additional Parts and Resources

For additional battery components, cells, connectors, BMS boards, nickel strips, tools, and supplies, visit RenewSpark.

For helpful tools, calculators, technical information, and additional resources, download the RenewSpark Tools app.

Ryobi is a trademark of its respective owner. This compatible product is independently manufactured and is not produced, sponsored, or endorsed by Ryobi.