Repair tools for batteries that aren't dead yet.
Open tools from The Repair Forge, a YouTube channel about repairing and restoring cordless power tools.
A battery that won't charge is not always dead.
Sometimes the battery's management board has stored a lock while the cells are fine. The charger can't tell the difference, so the battery gets thrown away.
These tools read what the board remembers, tell you whether the pack can be saved, and clear the lock only when it is a false one.
How the diagnosis and the repair work
What it reads on a Makita LXT battery
Two tools, one verdict
A standalone tester for Makita LXT 18 V batteries. An ESP32, a screen and a knob. No PC.
The companion app for Windows, macOS and Linux. It reads through your PocketOBI, keeps a history of every battery and gives the same verdict.
Watch it on the channel
Every tool on this site was built on camera. The videos are the quickest way to see what it does.
