I bought a bunch of eneloop pro, but using them in connected thermostats is always displaying “low battery” even after just fully charged. This is when I discovered that they are actually 1.2V
It really came as a surprise, is there a catch? Are they only good for low power stuff like remote controls?
Edit: it seems they do exist in lithium. Question remains why are the NiMH only 1.2v and why are they the most widespread?
Yeah but they’re a cheat. They’re lithium cells regulated down to 1.5v. Good ones are rare, when you find good ones they’re generally expensive and because they’re regulated down you generally get 100% battery showing until just before they fail.
I used them for some voltage sensitive stuff, but finding a brand that held a good charge for more than even 50-100 charges was hard.
Nimh is much better for anything that won’t be upset about the voltage too much.
There’s a type of lithium batteries that have a fixed voltage drop, meaning it will show the SoC of the lithium cell. I know about a company that just released a charger system meant for professionals that use these cells: https://klvr.no/charger-pro