Hey all, I've got a TS100 iron that I'd like to be able to use portable as it's hard to run power from the apartment down to the car/garage. I'd been looking at PD power banks and USB-C - DC barrel adapters with simulation triggers, but they work out pretty expensive, and I realised I have a bunch of Ozito power x-change 18V battery packs already. What I haven't been able to get an answer on though is whether the battery protection circuits are in the battery packs, or in the tools themselves. I'd expect them to be in the packs, but the Ozito manuals seem to reference protection circuitry being part of the 'tools', although it's very vague. I don't want to go and make up an adapter only to find that I accidentally kill a battery by overheating it/running it too low. Anybody got some info to share?