I use rechargeable in my old zoom h2 recorder and in my second best camera and my irig acoustic stage and a couple of other things and have never had a problem. I have a charger that seems to take for ages and a faster one. So that’s 8 batteries and it’s just a matter of planning. Tend to record all our music and practice and have never lost anything apart from I didn’t realise I hadn’t pressed record...

But I don’t mix or doing anything other than record stuff. Do any mixing on computer with Reaper or other DAW.

The charger that checks the charge is much better than the one that assumes they are flat. Have had a few batteries which have failed after a lot of use. But I haven’t bought a battery for years.

Though I would agree on using mains where possible and have three or four variable transformers