The 2015 Mercedes Benz B250e has a warning “replace battery” on the key fob. I took out the battery and sure enough, it’s measured 2.99V instead of 3.3V as a new one. Yes, with 2.99V, the car still drives. The battery size is CR2025. I got 10 LICB batteries from Amazon for $6. The battery […]
Category: Key Fob
Electronic key remotes
Change Battery On 2004 Honda Accord LX Key Fob
After 12 years, the battery on our 2004 Honda Accord LX key fob was dead. The battery part number is CR1616 3V. We need a small Philips head screw driver to remove the cover. Make sure the battery is inserted correctly with + and – side.
Fix Smart Key – No Key Identified – No Lock/Unlock With Remote – Change Battery on Keyfob A8
12/24/2017 The battery is low again and needed to be replaced.. We went on a road trip, we took our spare keyfob with us and when we tried to use it, the smart key didn’t work – no key identified message on the screen. We could use the key to start but none of the […]

Q7 Remote Key Fob Repair
If we need to change the battery or the shell of the 2008 Q7 keyfob, this video is very clearly instructed. To sync the key fob remote after battery replacement. 1 – put driver window down. 2 – insert key in door lock. 3 – twist to unlock and hold in position. 4 – with […]
Audi Seat Memories And Key Fobs
We owned Audis that have remote key fobs and driver memory seat, it’s great for family members to drive the car without having re-adjusting the seat everytime we use the same car. The driver seat can have up to 4 memory positions, which means we can also have 4 key fobs with different positions if […]