ANSWER: The most common battery rating is the AMP-HOUR RATING. This is a unit of measurement for battery capacity, obtained by multiplying a current flow in amperes by the time in hours of discharge. (Example: A battery which delivers 5 amperes for 20 hours delivers 5 amperes times 20 hours, or 100 ampere-hours.)
2 â The Block. Round off an end of a block of wood to match the original shape of the inside of the bumper and place it against the dent. Tap it with the rubber mallet and check it every so often to see how the repair progresses.
Scotty Kilmer, mechanic for the last 45 years, shows how you can fix big dents on plastic bumpers using hot water and a hammer.Since plastic is flexible when hot, this is something you can do easily at home with simple hand tools.cotty Kilmer, mechanic for the last 45 years, shows how you can fix big dents on plastic bumpers using hot water and a hammer.