Therm-ic ski boots warmer and USB
This is a short note: I have Atomic ski bots with a warmer built-in, but never actualy have tried to use the feature. Until today. My toes got so cold this time, so they inspired me to do some research and tests. Long story short – a USB charger hardwired to pins 1 and 4 make my boots warm right at the toetips. The voltage suggested ranges from 1.2V to 4.8V, while the USB gives about 5V. This at least lets me make the boots cosy when driving, with a car lighter USB charger. Nice.