CR1620 3V Fiat Car Key Batteries
You have selected the sizeCR1620. If this is correct simply select the brand of battery you wish to buy. Don't worry if you can't see the same brand you have taken out of the key, the two important things are the size and quality. BuyaBattery.co.uk only stock the highest quality Original Equipment batteries. Remember to increase the quantity in the box if your key has more than one battery in it or if you want to keep a spare set for emergencies.