It takes 30 minutes of driving time to recharge a dead battery allowing for 15 key presses, and 30 hours of total driving to fully recharge the battery FZV key rechargeable batteryįrom KL R, the battery inside the key head is charged inductively by the EWS ring antenna via a coil antenna integrated in the key. The charger will prevent your car battery from dying while the key gets charged. If you have a low battery and would like the key charged up without driving the car simply connect an automotive battery charger your car's battery pos/neg jump start terminals in the engine bay, then insert the key into the ignition and turn it to position 1 and leave it overnight. From position 1 (KL R) and 2 (Run) position the key's battery will be charged using inductive charging. How to recharge the BMW Key BatteryīMW keys are charged while in the ignition. Like any device powered by a rechargeable battery, it is necessary to periodically charge the battery for optimal operation.
In some models, that battery is rechargeable.
Your vehicle's key fob, whether original or a replacement remote key for BMW, is battery powered.
