Glad I searched before asking if my new EEVBblog BM235 could take 1.8v lithiums. I just tried it, same NG results. I put in some Energizer MAX AAA's, supposedly "leak proof" guaranteed, doubt that means much. While I've read how some poo-poo the idea that alkalines can leak, when you have a remote or other device become ruined because of an inexpensive battery, it's no longer theory, but reality. After a power outage years a go, I was opening all my remotes and other battery devices only to discover a few with old leaking batteries. I can't speak for others, but it then occurred to me how many devices I had put away thinking I'd be using them again, but the years go by quickly. That's when I switched to buying and using all Eneloop rechargeable batteries. Granted, some up front costs, but cheap insurance for many remotes and other devices, some of which are too old to find replacements for.
Very few devices don't care for the lower NiMH lower voltage, and work fine. On those devices I use the more expensive disposable store bought lithiums. Since this meter does not function with those, the QUESTION is now:
Are there any downsides to using NiMH rechargeable AAA's in this meter?