The drill was still in great shape and worked fine, but he couldn’t power the thing. Rather than toss a working tool, he decided to 3D print his own battery pack. The 3D modeling on the battery ...

These 18V battery packs are used to power the lion's share of handheld Ryobi tools, from power drills to vacuum cleaners and pruning chainsaws, as well as fun devices like music speakers and coolers.