Specifications - Battery
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
The batteries can be removed without special tools and are readily available at local retail stores. The recommended battery is Duracell DL 2016 or equivalent, TWO cells are required. Battery life is about three years minimum.
CAUTION:
Do not touch the battery terminals or handle the batteries any more than necessary. Hands must be clean and dry.