DeWalt FlexVolt DCB612 60V 12Ah Battery Rebuild Kit - 15x21700 (No Cells)

Product: DeWalt FlexVolt DCB612 (60V / 12Ah) Battery Rebuild Complete Kit for a 15×21700 cell layout.

This complete rebuild kit is designed for rebuilding a DeWalt FlexVolt DCB612 battery pack that uses a 15-cell 21700 configuration. It is ideal for DIY rebuilders who want a clean, accurate fit without cutting custom nickel strip.

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

Compatibility

• Battery Model: DeWalt FlexVolt DCB612
• Voltage Platform: FlexVolt 20V / 60V
• Cell Configuration: 15 × 21700
• Fits DeWalt FlexVolt tools and compatible chargers

What’s Included

• Battery housing / case
• BMS / protection board
• Pre-cut nickel and busbar set for the DCB612 15×21700 layout
• Contacts, springs, and assembly hardware as shown in the photos
• Carefully packaged for safe shipping

Please review all product photos carefully to confirm the exact components included with this kit.

Battery Capacity

The finished pack capacity depends on the 21700 cells you install. A 15-cell FlexVolt layout using matched 4,000mAh cells produces a pack of approximately 12Ah in 20V mode. Actual capacity, output current, and runtime depend on the cells selected and the quality of the assembly.

What Is Not Included

• 21700 lithium-ion cells — you supply your own
• Spot welder
• Battery charger
• Power tool
• Battery assembly service

Important Notes

• Cells and tools are not included.
• Please confirm your battery model is DCB612 before purchasing.
• Battery assembly experience is required. Spot welding is strongly recommended.
• Use only properly tested and closely matched cells. Do not mix cells of different brands, models, capacities, ages, or condition.
• Always verify cell orientation, polarity, insulation, and pack voltage before connecting to a tool or charger.

Additional Parts and Resources

For additional battery-building parts — 21700 cells, nickel strips, insulation rings, BMS boards, connectors, and other DIY battery supplies — visit RenewSpark.

For helpful tools, calculators, layout planning, and technical information, download the RenewSpark Tools app.

If you have any questions about compatibility or fitment, feel free to message me before ordering.

DeWalt and FlexVolt are trademarks of their respective owner. This compatible product is independently manufactured and is not produced, sponsored, or endorsed by DeWalt.