PerfectDry Lux
I have also used the PerfectDry Lux for both battery and rechargeable aids for a couple years now - no prob! I bought mine at Amazon49, and the description says it is a safe temp for rechargeables, too. I drop my aids in them after any kind of exercise that gets me sweating.
I have been using the EarGear “socks” on my aids for YEARS now, but only when I go to the salon. Keeps the hair dye from slathering all over the AIDS - doh. However, those socks get soaked with dye, and they are yucky when I take my aids OUT and then put them back IN when the dye is being rinsed out. Altogether, hearing aids + glasses + hair salon are a total non-starter for anyone’s day, lol. 
The EarGear socks don’t impede sound that much, altho things will be just a tiny bit muted. The biggest issue I have with them is that you can’t easily change PROGRAMS in your aids, cuz now they are covered in this sock. I’ll press kinda sorta where the buttons are, but sometimes I hit volume and sometimes program. Yeah. Like I said, non-starter for the day fussing with these things. But they have to be worn when going to the salon.