Component Tester LCR-T4 Case with 18650 battery USB charger and boost converter

thingiverse

I created this case for my LCR-T4 tester to make it rechargeable, thus avoiding the use of those pesky 9V alkaline batteries that don't last very long. The top compartment of the case fits an 18650 battery, a 03962A USB charger, and a boost converter comfortably. My board is wider than most models found on eBay, so I made the case 8cm wide to ensure it would fit safely. As an afterthought, I added a switch to the positive wire of the battery to prevent unnecessary discharge since the boost converter is always in operation. I drilled a hole using a Dremel and secured it with epoxy. In my design, there's no pre-drilled hole because if you have switches of different sizes, it's better to add one after printing.