Bosch (Green) 18V to Makita 18V Battery Adapter

Use your Bosch 18V PBA (Green) batteries on Makita 18V LXT cordless tools, without buying into a second battery platform. Voltage is not the obstacle here — both sides are 18V. The socket is, and that is what this solves. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. Fewer battery systems in the workshop, on the bench or in the van, and no extra chargers to find room for.

Specifications

• SKU PTA-BOSG18-MAK20
• Fits this battery Bosch 18V PBA (Green) (Lithium-Ion)
• Battery voltage 18V
• Runs these tools Makita 18V LXT (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 108 g (3.8 oz / 0.24 lb)
• Dimensions (L × W × H) How It's Measured 110 × 69 × 59 mm (4.33 × 2.72 × 2.32 in)
• Colour Black
• Operating humidity 5–95% RH
• Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
• USB port Yes
• What's in the box Battery Adapter
• Warranty 12 months after the date of delivery
• Revision Revision 01 (released on June 23, 2026)

Why choose this adapter

• Your Bosch 18V PBA (Green) battery and Makita 18V LXT 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.
• A USB port on the adapter, so the same battery charges a phone on site.
• Covered by a 12-month warranty from the day it arrives.

Bosch 18V PBA (Green) and Makita 18V LXT compatibility

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

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

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge Bosch or Makita 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 Bosch 18V PBA (Green) battery.