I have rechargeable HAs that I need to charge overnight. What I have done is install the HA charger in the same cupboard as our electric hot water cylinder as the cupboard is quite dry due to heat loss from the cylinder. Seems to have worked well for the past 2 years.
I havenât checked out the Phonak options, but my Widex Charge n Clean has a very quiet built-in fan and external vents for drying. The UV LEDs are placed at several locations, so shadowing would likely be minimal. UV does transmit through some materials, including clear/translucent silicone. At any rate, they wonât contribute appreciably to the drying effect.
The charger was included with my HA order but can be a bit pricey if purchased separately (>$200!).
I hadnât thought about the plasticsâ UV resistance (or lack thereof) âŚthat is a concern. I think it would be good to identify those materials and their properties. Silicone is known to be highly UV-resistant, as is PVC, but are those cables PVC-jacketed?
I might cover those LEDs with some light-blocking stickers, unless/until itâs shown that itâs not an issue.
I still use the Phonak D-Dryer and yes it has a bright blue led which only comes on for a short time, when the UV lamp is on. UV light will harden the tubing and the soft full shell molds.