[kevin_thibedeau]

Unless you want to recharge your fob every week it has to stay passive as much as possible. The car has a bigger battery.

[harg]

Some older fobs do recharge when in the car’s ignition. My old bmw did this and it was recommended to swap the keys from time to time to make sure they didn’t run out off battery. I guess this can’t be the case with the “keyless” keys though