LED Battery Work Light LI-Ion Replacement

thingiverse

#The Story# Some years ago I bought a cheap 60 LED battery work light ([Example - there are many like this on the market, also with less LEDs](https://www.ebay.de/itm/264716102073?epid=1922368200)). Of course, with the years of usage the NiMH battery died which made the lamp kind of useless. A replacement was needed and I took the decision to use LI-Ion battery instead. #What is this thing?# This thing contains all 3D printed parts you will need to get the replacement job done. Help the environment by repair the lamp and not throw it away!! You then can charge the lamp via Mini USB, or use a USB power pack. It uses a powerful and reliable LI-Ion battery to replace the original NiMH used. ##Is it easy - like plug and play?## Nope, surely not for everyone. It is not super difficult, but I recommend to be "advanced" in doing this kind of "operation". At least you should have experience in working with solder, LI-Ion batteries and some kind of basic electric understanding. Also this is not a fully "dummy" friendly manual tho it provides a guide step by step on how I did it. ###!!! Disclaimer !!!### LI-Ion batteries have a lot of power and can explode easily or catch fire on a short circuit or if not handled with care! Be extremely careful and double check everything. I am not responsible for any damages or if you overestimate your own skills! This thing is a inspiration, not a fully manual or guide. I took care in writing down the required steps, but sometimes things get messed up or maybe I even made a mistake. If you find one or have an improve, let me know. #Replacement steps (in short):# 1. Open the lamp (if you completely break it the whole operation can be useless) 1. Remove the charge port and the NiMH battery (documenting the whole process with pictures is a good idea at this point - so you don't get confused with the wires later on) 1. Buy the electric parts and the LI-Ion battery (size you like; for TP4056 without changing the resistance a 1000 mAh battery at minimum should be used) 1. Get the circuit working (soldering) and test the function 1. Print the plastic replacement parts 1. Assemble everything 1. Enjoy the nice light! Pat yourself on the back for saving (a small part of) the environment.