Makita Battery Adapters

For safety, ruggedness and modularity, when designing your own Makita LXT accessoires, do what power tools do: create your own slide-on adapters that can be safely attached to Makita batteries.

Overview

There are numerous options that you can choose from, depending on how much work you want to invest, and whether you are building just a prototype or need a rugged production tool:

• Contact Plates:
  resemble the electric adapter part that slides into the primary battery connectors. Contact plates serve as the core of your self-constructed adapters, and are used inside many commercial 3rd party adapters as well.
  

  You can source them for little money at AliExpress, or 3D-print them yourself.

• Pre-Made Adapters:
  Ready-to-use rugged adapters that deliver the battery power via a cable. Your own DIY components are external and live outside the adapter.
  

• Repurposing:
  Cheap 3rd party accessoires are often simple to disassemble and can be repurposed for your own projects, providing you with a professional ready-to-use housing that can contain your DIY components if they are small enough.

  

• Empty Housings:
  Those who sell 3rd party accessoires often also sell their housings separately.

  Just make sure you compare prices: often, empty houses are not much cheaper than the complete accessoire which provides you with spare parts you may want to use in other projects:

  

• 3D-Print Your Own Adapters:
  With access to a 3D printer, design and print your own adapter housings tailored exactly to your needs:
  • incorporate pre-made contact plates and wrap your own 3D-printed adapter around:
    
  • use only the metal parts of a pre-made contact plate, and insert them directly into your 3D printed design to create fully integrated professional adapters:
    
  • incorporate the yellow digital interface plugs right into your 3D printed housing to also access the Makita digital interface.
    

  • use simple spade terminals and insert them into your 3D print - as seen in this ArduinoOBI housing:

    

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^{_{(content created Oct 10, 2025 - last updated May 07, 2026)}}