In the summer, the room with the dehumidifier gets very warm, probably >90F (a guess) overnight. Then I open it up in the morning, and don’t have to worry about my dust mite allergy. The room has foam sound-proofing for recording music.
I live in Florida, and choose not to use the AC. I work outdoors 2-5 days per week, and I find if you live in AC, you never get acclimated to the heat.
I thought the dehumidified room would help dry the aids.
Last night I moved the charger out of the dehumidified room, and they charged just fine. No red lights, and 100% in both ears.
If that is consistent, I’ll figure it was the heat, if not, look for something else.
All in all, I like the L90s better than my old OPNs, but I really prefer the old, replaceable batteries.
Recharging seems like a good idea, less cardboard/plastic/battery waste, but the trade-off is less dependability. Eventually the rechargeable battery will have to be replaced.
With the old batteries, I would change them twice a week, and never have a problem.
On the other hand, having the rechargeables in a sealed case means my aids are more water-resistant to perspiration and an occasional rain shower.
Next time, if they offer a choice, I’ll choose replaceable batteries.