How Do You Change A Nissan Key Battery. However the standard keys remote-control key fob does contain an internal battery. The key fob of your Nissan requires a battery change after some time.

Slide the catch on the back of the key to one side and pull on the key loop to remove the blade. Use a cloth to protect the casing. Insert the screwdriver head into the slot see photo below.
Insert new battery and make sure the negative side of the battery is faced in the same position as before.
Replacing Nissan Micra car key battery is almost the same as the Qash Qai and Note model. Pop in the new battery and make sure the negative side of the battery faces you in the same. The Group 35 battery is one of the more common sizes. Replace the battery in the Intelligent Key as follows.
