I hope you'll be able to help. First of all this is a bit of a complex one that I'm struggling with. I wear hearing aids, both of which use removable, rechargeable batteries, charged only by a charger plugged into an AC outlet.
Short version: I'm looking to try and see if it's possible to charge my batteries using a USB outlet, presumably USB C or USB PD (meaning I can use a battery bank to do so, and I don't have to spend my life tethered to an AC outlet).
Long version: I'm profoundly deaf, (basically, without hearing aids I hear sod all) and I'm an outdoor person. I love to spend long periods of time outdoors, exploring and doing things that involved a prolonged period of time away from regular AC outlets. This means that I don't always get to recharge my hearing aid batteries due to their power supply being AC (UK plug). Hearing aid manufacturers aren't renowned for being modern and keeping up to date with modern charging capabilities. I'd love to know if it's possible to charge my current set up using a USB C/USB PD battery bank, with the help of an adapter/converter; I just simply don't know enough about electronics to feel comfortable in making the decision. I swear to God, if anyone is able to help me understand this or make it possible, you will have honestly changed my life and I'll be forever grateful to you.
The specifications on the plug for the charger to my hearing aid batteries reads as follows:
Switching Power Supply
Input: 100-240V ~ 50/60Hz 500mA
Output: 12V - 1000mA
If there's any more information you need, just let me know. Again, I appreciate anyone's help with this in any way.