My head and tail lights are USB rechargeable so when I park my bike, I just plug them in and walk away. No more dead batteries! Anyway I want to add a cadence sensor to this bike, last sensor I kept going through batteries and it was a hassle. Anyone know if there is an ANT+ USB rechargeable cadence sensor? Googling turned up a lot of rechargeable bike computers, but I don't want that, just an ANT+ sensor I can pair with my phone.

Thanks!
Rob