Originally Posted by hotprops

looked in diy and maintenance sections without any luck.so ,i want to replace my almost new group 35 battery with a new agm type battery.the question is this. how long do i have to remove the old and install the new without possibly losing data or settings on the computer or other memory devices? also any advice as to how best do this would be appreciated . thanks to all. i looked at the service manual and think i have the removal process ok but there is always great info available here thanks