Makita 18V to Bosch 12V Battery Adapter
$50.00
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Makita 18V to Bosch 12V Battery Adapter
$50.00
Taxes included.
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Use your Makita 18V LXT batteries on Bosch 12V cordless tools, without buying into a second battery platform. Your Makita 18V LXT battery is 18V and a Bosch 12V tool expects 12V. The converter holds the output at the tool’s level for as long as the battery lasts. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. It keeps one battery platform serving more tools, which costs less than buying into another.
Specifications
- SKU
- PTA-MAK18-BOSB12
- Fits this battery
- Makita 18V LXT (Lithium-Ion)
- Battery voltage
- 18V
- Runs these tools
- Bosch 12V (Lithium-Ion)
- Tool voltage
- 12V
- Housing
- ABS (Injected)
- Terminals
- Copper
- Current rating
- 40A continuous (80A peak at 18VDC for up to 2 seconds)
- Weight
- 152 g (5.4 oz / 0.34 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 deliveryMore details
Why choose this adapter
- 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.
- 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 Bosch 12V compatibility
It works in one direction only: Makita batteries powering Bosch tools. For the opposite pairing, see adapters that run on Bosch 12V 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 Bosch 12V batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge Makita or Bosch 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.
How it works
-
1. Use the battery you own
Any compatible Makita 18V LXT battery you already have.
-
2. Slide on the adapter
It goes where the original Bosch 12V battery sits.
-
3. Click in and work
No tools, no wiring, no modifications.
Makita 18V LXT to Bosch 12V — Common Questions
Will this fit my other Makita batteries?
Only Makita 18V LXT batteries. Makita also sells Makita 18V Ni-Cd/Ni-MH, Makita 36V, Makita 10.8V CXT, and those use a different socket — same brand, different rail and contacts, so they need their own adapter. Compare the rail on your battery with the photos before ordering.
Will my Bosch 12V tool run as long on a Makita 18V LXT battery?
Runtime comes from the battery, not the adapter — a 5.0Ah Makita 18V LXT battery lasts roughly twice as long as a 2.5Ah one, exactly as it would on its own tool. The adapter’s copper terminals and heavy-gauge wiring are there to keep resistive loss low.
Could this damage my Makita 18V LXT battery or my Bosch 12V tool?
Used with undamaged, compatible equipment it is not expected to. Makita 18V LXT batteries are lithium-ion with a protection circuit built into the battery, and it keeps working through the adapter — it stays in the battery and never moves into the adapter. Stop when the tool slows noticeably rather than running the battery flat, and stop using the adapter if it becomes unusually hot or the contacts look damaged.
Can I charge through the adapter?
No, and it should never be attempted. The adapter carries power one way only, out to the Bosch 12V tool — there is no charging circuit inside it. Connecting it to a charger puts the battery, the charger and the adapter at risk. Always take the Makita 18V LXT battery off the adapter and charge it on its own charger.
Does it work with third-party Makita batteries?
Usually. What matters is the socket, not the badge: if the battery slides on and locks the way an original does, the adapter takes it and the Bosch 12V tool runs. Aftermarket moulding does vary, so if yours looks unusual send us a photo and we will check before you order.
How much does it add to the Bosch 12V tool?
152 g (5.4 oz) and a short extension between battery and tool. You notice it overhead or in a tight cabinet; on a drill or driver held normally it disappears.
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