I have a bluetooth headset that charges at direct current 5 Volt and 450 Milliampere. I charge it with its original AC-DC-converter and I want to be able to charge it over USB (e.g. from a portable pre-charged battery/charger or a solar USB charger).
I could easily cut the cable and solder the one end to a charging USB cable, but with this I would almost always give 5 Volt and 1 Ampere since that is the standard, right?
- Are there modified USB "cables" with extra electrical components on the market that use 500mA from 1A?
- Is there a DIY way to take out those 650mA or 500mA?