Rechargeable key?
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Joined: Nov 2014
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On my previous car the original battery was replaced at 4 years with another replacement when the car was 9 years old. IMO a key fob transmits only when a button is pushed or it responds to a transponder signal. Otherwise battery replacement would occur more than once a year because those 3v batteries do not have very much power.
Last edited by ua549; Mar 23, 2018 at 01:41 PM.
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Junior Member
Joined: Nov 2015
Posts: 66
Likes: 14
From: Columbus, Ohio
W213 E43 Diamond White/ Designo Nut Brown
before changing your key fob battery, you might consider this
when you lock your car using key fob, if you press "lock" twice, the car will automatically set to "sleep" and won't receive any signal from key anymore. So if you come close to the car and grab door handle, it won't recognize it.
when you lock your car using key fob, if you press "lock" twice, the car will automatically set to "sleep" and won't receive any signal from key anymore. So if you come close to the car and grab door handle, it won't recognize it.
