Makita 18V to CAT 18V Battery Adapter

Use your Makita 18V LXT batteries on CAT 18V cordless tools, without buying into a second battery platform. Power passes straight through: Makita 18V LXT and CAT 18V share the same 18V rating. Built with a durable injection-molded ABS housing and pure copper contacts for steady current delivery. This helps you get the most out of your existing battery system while avoiding the cost of another set of batteries and chargers.

Specifications

• SKU PTA-MAK18-CAT18
• Fits this battery Makita 18V LXT (Lithium-Ion)
• Battery voltage 18V
• Runs these tools CAT 18V (Lithium-Ion)
• Tool voltage 18V
• Housing ABS (Injected)
• Terminals Copper
• Current rating 40A continuous (80A peak at 18VDC for up to 2 seconds)720 Watt continuous at 18V nominal
• Internal wiring 5 mm²
• Weight 121 g (4.3 oz / 0.27 lb)
• Colour Black
• Operating humidity 5–95% RH
• Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
• USB port No
• What's in the box Battery adapter
• Warranty 12 months after the date of delivery
• Revision Revision 01 (released on May 26, 2026)

Why choose this adapter

• Your Makita 18V LXT battery and CAT 18V tools run at the same voltage, so the adapter changes the fitting rather than converting anything.
• Injection-moulded ABS, not 3D printed — no layer lines to split under load.
• Solid copper terminals, so less of the current is lost as heat.
• 5 mm² internal wiring, rated for 40A continuous with 80A peak at 18VDC for up to 2 seconds, so a high-draw tool is not held back by the adapter.
• Covered by a 12-month warranty from the day it arrives.

Makita 18V LXT and CAT 18V compatibility

It works in one direction only: Makita batteries powering CAT tools. For the opposite pairing, see adapters that run on CAT 18V batteries.

Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Makita 18V LXT platform and that your tool takes CAT 18V batteries.

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge Makita or CAT batteries and must never be connected to a charger of any kind. Always take the battery out of the adapter before charging, and charge it on the original charger made for your Makita 18V LXT battery.