I bought it here.
Bmw smart key charging.
Bmw keys are charged while in the ignition.
Noco genius1 1 amp fully automatic smart charger 6v and 12v battery charger battery maintainer and battery desulfator with temperature compensation.
Open the center console of equipped bmw models and locate the charging pocket along the side of the console closest to the driver s seat.
Pull the hood release twice and open the hood.
Put the display key into the center of the pocket.
From position 1 kl r and 2 run position the key s battery will be charged using inductive charging.
Insert the display key into the charging pocket for wireless charging.
A cheap 10 way to charge your bmw key fobs back up and probably any other rechargeable key fob.
Locate the positive terminal under in the engine bay.
For bmw key fob cover case with bmw 1 series x3 m5 keyless smart rmote silver 4 6 out of 5 stars 469.
Open the driver door using the emergency key found inside the key fob.