Question about Makita 18V Lxt Lithium Ion Rechargeable Flashlight BML185
Flashlight goes out after being on for a minute or so. This started about a month after buying flashlight. Had pcb board and switch replaced under warranty. Now doing it again,but now out of warranty. Need to get case head off to repair ,but not sure how to do it. Would appreciate any help.
I had exactly the same problem. I replaced it on warranty, and the next one did the same.
The head is held on by spring loaded pivots that are also the electrical contacts. You have to press them down to slid the head off.
1) Remove battery and all visible screws.
2) Remove lens, remove internal screw, pull out white globe holder, and pull out the other metal strip below it.
3) find something thin and narrow enough to fit down the internal grooves, to press in the pivots. On my first try, I had to slide a steak knife down to get the pivot half down, then slide in the spoon handle and remove the knife. Subsequently, I found that just wiggling the spoon would work.
4) Hold the spoons in place, and pull the head off.
5) remove the last screw and look at the electronics. It's a simple setup with an 18v battery, an 18v globe, a switch, an unneeded circuit board. I found it easy to simply bypass/remove the circuit board. Just cut all the wires going into the circuit board, and connect the red to the red, and the black to the black (with extensions to get the disthow to remove case head from makita BML185W flashl - 739c2b5c-e11d-4742-8c99-b067c5a451ac.jpgnet/uploads/images/739c2b5c-e11d-4742-8c99-b067c5a451ac.jpg" alt="739c2b5c-e11d-4742-8c99-b067c5a451ac.jpg" class="h_mi" />However, I got carried away, and will add a parrallel circuit with a 5v regulator and a usb port, turning it into a phone charger as well.
6) reassemble the body, and tighten all the screws. Don't worry about which side the positive pivot or negative pivot should be on. Polarity is unimportant for incandesant globes. (if you modify for LED, you can just swap the pivots to get it right)
7) When you reassemble this. Ensure that you fully assemble the head before reattaching it. If you don't tighten the screw and put the lens on, the metal contact strips can be push aside, and the torch won't work.
8) press down the pivots to slide the head back on.
Be aware that the point of the protection circuit is to protect those EXPENSIVE batteries. You can manage this by simply NOT leaving it plugged in when not is use, and not leaving it on when the lights goes dim. Or you could buy a replacement protection circuit board on ebay.
But especially if you try my phone charger idea, DO NOT LEAVE THE BATTERY PLUGGED IN unless you have protection.
Posted on Jan 05, 2014
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Posted on Jan 02, 2017
You may have to pry it apart. I recently had one of those and had the same problem. Couldnt find how to take it apart with out prying it.
Posted on Jun 02, 2013
Testimonial: "thanks i thought that would be the case just scared in case i break it "
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