You asked, we listened, the DIY adaptor plates now available. 

Now they are built with injection moulding, making them even more compact and rigid. The wires are sticking out from the back instead of top, so they can be fixed flush onto the wall neatly. We've upgraded the switch (only available on some models) to a larger one as well which can handle 15A constant current. For the most popular Makita/Milwaukee/Dewalt version, we added a courtesy inline fuse holder with a 30A fuse inserts so they are ready to go! You could also replace the fuse inserts to any size you like without having to spend another $7 to buy the fuse base!

It's self explanatory when it comes to how to use it. Plug the battery in, and do whatever you want (apparently not to short the positive and negative) with the 2 sticking wires. You can also apply a dap of glue to the solder points if you are not going to change it in future.

Again, they all come with 1 year warranty, the real 'look after your mate' kind of warranty where you just send pictures show me what's the problem and I'll fix it for you, mostly likely to be a replacement. How does that sound?

PLEASE READ: Disclaimer/Disclosure Statement -The adapter only works on Makita 18v battery -batteries are potentially hazardous and can present a serious fire hazard if improperly used. Remove battery from adapter when not in use. -never fully discharge your batteries. -We are not associated or affiliated with Makita.-this adapter should only be installed by a qualified technician -The product is not intended for use by persons (including children) lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the product by a person responsible for their safety. Children should be supervised to ensure that they do not play with the product  -Store the adapter when plugged-in to battery away from other metal objects like keys, nails, screws or other small metal objects. These things can make a connection from one terminal to the other, shorting the battery terminals together and causing burns or fire -Use at own risk, we do not accept responsibility for any injuries, loss or damage to any person or equipment whatsoever when using this adapter. -To keep your batteries protected never run them completely dead as they will wear the capacity down over repeated cycles and always keep lithium-ion batteries fully charged when not in use for long periods. Under no circumstances shall we be liable for any indirect, incidental, consequential, special, exemplary, or punitive damages arising from or related to the adapter, whether such claim is based on warranty, contract, or otherwise. -This adapter has no copied parts of Makita products and has been independently engineered.