Hello We have a '07 Endeavor SE, which we love and am curious about the car's main computer possibly needing a replacement battery? Our mechanic put his code machine to our car today , for some codes were created in Dec of '17. So besides doing some routine scheduled work, i.e. oil change , rotate tires , etc some codes he found in Dec were gone. So he believes ,being a 10 year old car that perhaps the original battery car's main computer board ,if I understand, may be in need of replacement. We are going to keep eye on it but other wise car is running wonderfully so any advice is greatly appreciated .Oh and if someone knows, what type of battery would we need? Thanks, kragfearghal.