M18 18V Li-Ion Battery Case – 10x 18650 Cells & Nickel Strips

Rebuild or DIY Your 18V M18 Li-Ion Battery Pack with Ease

This M18 Compatible 18V Li-Ion Battery Case Kit is designed for hobbyists, makers, and DIY enthusiasts who want to rebuild or customize their 18V power tool battery packs. Engineered to fit 10 x 18650 lithium cells in a secure arrangement, the kit comes complete with nickel strips pre-cut for spot-welding connections — making your battery rebuild cleaner, faster, and more reliable.

Whether you're rebuilding a worn-out battery pack or constructing a new one from scratch, this case provides the structural support and electrical connectivity you need. Note: Batteries and charger are NOT included.

Key Features

• Compatible With: M18 18V Li-Ion battery platform power tools
• Cell Configuration: Accommodates 10 x 18650 lithium-ion cells (cells not included)
• Includes Nickel Strips: Pre-cut nickel sheet strips for easy spot-weld assembly
• Durable Construction: Sturdy plastic housing holds cells firmly in position
• Multiple Pack Options: Available as 1-set, 2-set, or 5-set purchase for greater value
• DIY-Friendly: Ideal for battery pack rebuilds, repairs, and custom builds

Package Contents

• 1 x M18 Li-Ion Battery Case (fits 10 x 18650 cells)
• 1 x Set of Pre-Cut Nickel Strips
• Batteries and charger NOT included

Specifications

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Safety & Standards Reference

For general guidance on safe handling and disposal of lithium-ion batteries and battery components, visit the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.

Learn more: EnerSys

Frequently Asked Questions

Q: Is this M18 battery case compatible with all M18 18V tool batteries?

A: This case is designed to be compatible with the M18 18V Li-Ion battery platform, fitting 10 x 18650 cells. It is intended for DIY rebuilds and repair use — always verify your specific battery dimensions before assembling.

Q: Do I need a spot welder to use these nickel strips?

A: Yes, a spot welder is recommended for attaching the included nickel strips to your 18650 cells for a secure and reliable electrical connection. Soldering directly to lithium cells is generally not advised due to heat sensitivity.

Q: Are 18650 batteries included with this kit?

A: No — the 18650 lithium-ion cells and charger are NOT included. This kit contains only the battery case housing and the pre-cut nickel strips needed for assembly.

Q: How many sets can I order at once?

A: This product is available in 1-set, 2-set, or 5-set quantities, making it easy to stock up for multiple rebuilds or projects.