Hello 
I have interesting information regarding rechargeable batteries to hearing aids like p13, p312
Recently there have been developed new rechargeable batteries to hearing aids, so that one can constantly use only 4 rechargeable hearing aid batteries, like MeloSound or PowerOne and recharge them overnight every once per several weeks. And there is no need to buy anymore those traditional, non-rechargeable, dispensable batteries and dispose them to trash all the time which can be quite harmful for natural environment, not eco-friendly
So there can be a lot of money saving when using these rechargeable batteries for hearing aids and there is benefit for the natural environment, it’s more eco-friendly this way. I really, wholeheartedly recommend using these rechargeable batteries to hearing aids
Below I attach photos of my usage of 4 rechargeable batteries to hearing aids and their MeloSound charger, it’s a very interesting equipment
these rechargeable batteries last several weeks on one charging, with my level of usage. They last a bit shorter on one charge than traditional, conventional one-time batteries but it’s still more profitable
At one time I use 2 rechargeable batteries in my hearing aids and I always carry in my backpack another 2 recharged batteries in small, special Rayovac cache, visible in photos below
When one of my rechargeable batteries deplete then I change it with recharged from this Rayovac cache and when I return home then I insert depleted rechargeable battery into MeloSound charger for charging overnight, actually it doesn’t require much time for charging, around several hours, perhaps even less.
below there should be 5 photos of these rechargeable batteries to hearing aids and their charger from MeloSound + Rayovac cache
