No, that’s old rechargables like NiCad and NiMH. They make rechargeable lithium ones these days that have an integrated BCU and output 1.5v until they’re dead. Many you can charge via USB-C or micro, so you don’t even need a special charger.
Yea, it’s definitely worth being aware of what voltages your batteries deliver. Not even 18650’s put out the same voltage as either old or new “rechargable” sizes, so it’s always worth paying attention.
Though for normies, the directly plugin-able rechargeables are pretty sweet.
Unfortunately, some things can’t handle the lower voltage AA so must use alkaline.
No, that’s old rechargables like NiCad and NiMH. They make rechargeable lithium ones these days that have an integrated BCU and output 1.5v until they’re dead. Many you can charge via USB-C or micro, so you don’t even need a special charger.
OP said he bought a bunch a long time ago, most likely not lithium. I’m in the same boat, they just dont work in all devices unfortunately.
Yea, it’s definitely worth being aware of what voltages your batteries deliver. Not even 18650’s put out the same voltage as either old or new “rechargable” sizes, so it’s always worth paying attention.
Though for normies, the directly plugin-able rechargeables are pretty sweet.