How big is your battery box compared to the battery? On my PW the box was longer than the 24group battery, so much so that someone had placed a length of 2x4 in there to prevent the battery from sliding back and forth. I was able to remove that battery without taking out the bed platform by using the strap to lift the end (RE = rear end closest to me standing outside the RV) of the battery up and work the battery toward me, stand it on its end, pull it close to the RE of the box and pivot it horizontal. Then I slid it toward me and took it out.