12V power supply using 18V Makita tool battery

thingiverse

This thing is a mount to use to create a 12V power supply, using an 18V Makita battery as the source, for running your 12V air compressors, kayak and SUP inflators or other 12V accessories away from your vehicle or in your shop when you need that 12V source for testing or whatever. Print the mount on end to minimize the need for supports. Mount the DC converter and battery dock with some screws, then wire up the switch and pop it in the cutout. Use a female XT60 connector or your other favorite type on the output. I have male XT60s on all the 12V devices I need to run so it is then just plug and play. And the 3D mount and switch are optional. You can just sandwich the converter and batter mount together and solder the wires up. You just won't have an on/off switch and should disconnect the battery when not in use. The wiring is simple but if you don't understand it do not attempt to make this. These batteries have a lot of energy and can be hazardous if mishandled or connected improperly. Other parts needed to complete this device are: Makita 18V battery dock https://www.amazon.com/dp/B086S47GZG?psc=1&ref=ppx_pop_dt_b_product_details DC/DC converter (I am using the 30A version) https://www.amazon.com/dp/B01JAIC7OO?psc=1&ref=ppx_yo2_dt_b_product_details Rocker switches https://www.amazon.com/your-orders/pop?ref=ppx_yo2_dt_b_pop&orderId=111-7827632-1733063&lineItemId=mmmprrnrppltony&shipmentId=UvMyVkLYz&packageId=1&asin=B07MV56LKS A couple of standard shielded 1/4" (6.4mm) female crimp terminals to attach the wires to the switch. And get one of these or similar, cut the male plug off and connect a female XT60. That way you can just plug in your inflator to the battery like you would in the car.... and preserve the pump's male plug in case you want to use it in a car sometime. https://www.amazon.com/NOCO-Boost-GBC010-12V-Accessory/dp/B07HFJZP67