Metcal e.g. MX500 is built like a tank and often available cheap on eBay. I picked up a bargain priced unit on a whim and it's been great. Used it to get the c

Metcal e.g. MX500 is built like a tank and often available cheap on eBay. I picked up a bargain priced unit on a whim and it's been great. Used it to get the controller out of an ebike battery yesterday :D