Where do I go to get a spear key for a Honda
go to corvetteforum.com and they have the answer
on the key fob, turn the key over so that the buttons are on the back. there is a small groove near the blade/key end of the fob. you can prise this open using a small screwdriver or if you're strong pull the blade/key part outward/away from the fob. the remaining key fob can then be split in two to get at the battery. beware that you only have a very short time to replace the battery or the fob will go out of sync with the car.
The batteries in a Ford Mondeo key fob go in with the positive side facing up. This is the more flat side with the writing on it.
what is the reason for not fixing camera in key fob
go to the gm dealer
Free On Board (FOB)
C200 key fob problem
You do not have to reset the key fob when changing the battery.
By driving with the key fob in the ignition.
A key fob is for instance a mini card on your keyring, for instance I have a tesco's clubcard key fob on my keyring therefore when I put petrol in my car and pay at the checkout instead of finding my clubcard I get my key fob!
Go to the dealer, or you may be buying another key soon.