Button cell battery adapter and rechargeable hearing aid battery

[ManWithBeard1990]

And where do you put the bigger battery? Let it dangle from your ear or does it come as a sort of necklace-thing?

[twzero234]

@ManWithBeard1990 one of our product comes as a sort of necklace (with cloth clip) and using one AA size battery (normal 1.5V or rechargeable 1.2V, output 1.4V).

[powercan7]

we have succeeded developing human body heat power generator (Thermoelectric generator) for hearing aid in our lab, so far it is costly and not yet can be a commercial product, but we have developed and can offer the other low cost portable pocket size power generator devices, consumers can generate the power by light exercise for their own hearing aid. the more power generated the more healthy user can be.

[powercan7]

125 years life hearing aid battery (one single rechargeable NiMH battery). product coming soon!

[twzero234]

most of the hearing aid zinc air button cells contain mercury, over billion cells are discarded at will every year, and one cell may pollute 0.6 ton water, but seems have not yet had a good recycling program for this kind cell.