FOB battery replacement...
Pro
Joined: Dec 2014
Posts: 624
Likes: 91
From: Dewitt New York
2032 it is...just replaced mine after 2 years and 8 months and after the fob, left in the garage at 34 degrees, refused to lock or unlock the doors. When brought into the house and allowed to warm, it worked fine, but I thought I was on borrowed time.
Ken
Ken
Last edited by probono; Nov 19, 2017 at 09:16 PM.
4th Gear
Joined: Aug 2017
Posts: 4
Likes: 1
The 2032 is the correct battery. I just replaced batteries in both of my remotes. Easy to do and while do so, I checked voltage difference between old and new batteries. Old batteries were 2.7-2.8 volts dc. The new batteries were 3.3 volts. My old batteries were just hitting 3 years since the vehicle was new. I had random no fob recognized so to be safe I changed
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
Melting Slicks
Joined: Apr 2013
Posts: 2,691
Likes: 141
The 2032 is the correct battery. I just replaced batteries in both of my remotes. Easy to do and while do so, I checked voltage difference between old and new batteries. Old batteries were 2.7-2.8 volts dc. The new batteries were 3.3 volts. My old batteries were just hitting 3 years since the vehicle was new. I had random no fob recognized so to be safe I changed
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
If it your only car, change both at 3 years.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,042
Likes: 12,410
From: NE South Carolina
The 2032 is the correct battery. I just replaced batteries in both of my remotes. Easy to do and while do so, I checked voltage difference between old and new batteries. Old batteries were 2.7-2.8 volts dc. The new batteries were 3.3 volts. My old batteries were just hitting 3 years since the vehicle was new. I had random no fob recognized so to be safe I changed
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
the batteries. The original batteries would probably have worked down to 2.5 volts. I have found that iPhone proximity to the fob will prevent recognition.
The FOB batteries appear to need voltage in the "new" area.I have a battery checker that puts a load on the battery (depending on size) so it is giving a better value that just a voltage reading. With a digital volt meter the current draw is very low.
I had changed my 2014 C7 FOB battery after 2 years as a precaution. After a year that FOB was not always opening the door and then would not allow the car to start. I used my other FOB which had been in a draw not used for then 3 years. It worked for a short while then it was erratic.
Checked both batteries and they read just barely in the Green OK area. Bought two new quality batteries that read strongly in the Good range. Both FOBs worked fine!
Will change my Grand Sport FOB battery with a quality replacement after two years! Those cheap eBay batteries (and probably Amazon) are not worth using, IMO!
Last edited by JerryU; Apr 24, 2018 at 07:27 AM.
