LIB-902 to 1S li-po adapter

thingiverse

Here's the adapter that allows to replace original LIB-902 battery in your Aiwa minidisc device with a slightly stripped ZOP Power 600mAh 1S battery that I've found here: https://www.banggood.com/ZOP-Power-3_7V-600mAh-20C-Lipo-Battery-JST-Plug-p-994143.html **DISCLAIMER**: In order to build it, you'll need to modify the battery, stripping it of its top fiber tape layer and soldering wires to it. Do it at your own risk. To build it, you'll need to replace the negative wire with a longer one. Also be careful not to poke the battery packet when you're tucking the negative wire into the groove inside the wall with a pair of thin tweezers or similar tool.