# M18™ REDLITHIUM™ batteries — Power tool battery and accessory compatibility

For M18™ REDLITHIUM™ batteries, system is Milwaukee M18/M12; platform owner is Milwaukee; subject type is battery; compatible with is All M18™ batteries fit M18™ tools, recorded from its source on 2026-08-11.

- **System:** Milwaukee M18/M12 _(our reading, not quoted from the source)_
- **Platform owner:** Milwaukee _(our reading, not quoted from the source)_
- **Subject:** M18™ REDLITHIUM™ batteries _(verified: appears in the quote below)_
- **Subject type:** battery _(our reading, not quoted from the source)_
- **Compatible with:** All M18™ batteries fit M18™ tools. _(verified: appears in the quote below)_

## What the source says

> There are three tiers of M18™ REDLITHIUM™ batteries. REDLITHIUM™ FORGE™, REDLITHIUM™ HIGH OUTPUT™, and standard REDLITHIUM™. REDLITHIUM™ FORGE™ batteries provide the MOST POWER, FASTEST CHARGING, and LONGEST LIFE. All M18™ batteries fit M18™ tools.

## Source

- https://www.milwaukeetool.com/products/batteries-and-chargers/m18-batteries-and-chargers

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Power tool battery and accessory compatibility](https://referencesource.org/power-tool-battery-accessory-compatibility/).