Post by
BobP »
https://forums.nicoclub.com/bobp-u121916.html
Mon Dec 22, 2008 12:22 pm
Just went through this with my 06 - Remove the key from the fob, and you will see a thin slot near the key opening of the fob. Insert a thin screw driver into the slot and pry the upper shell from the lower shell, exposing the battery and little pcb. Replace the battery with new lithium 2025 (pay attention to polarity). Sounds like it is time for a battery replacement.
The fob holder slot does not charge the battery, but it does boost the signal to make a marginal (or intermittant) fob functional for operating the car.
Hope this helps.....