How to check your batteries for damage regularlyUpdated 2 years ago
Your batteries must be kept in perfect condition. Any battery that has damage to the body itself (dents, scratches, marks on the metal) should be safely disposed or replaced.
Batteries always have a wrap on them. An unwrapped battery will be silver in colour (metal) and is EXTREMELY dangerous - a battery should NEVER be used if it does not have a wrap on it. Battery wraps are there to protect the battery from short-circuiting. The battery wrap should always be free of damage. Any small nick, mark or scratch on the battery wrap means you should no longer continue to use this and the wrap should be replaced. It is extremely important to keep the isolator ring on the positive end (usually a little black or white O-ring that goes on the top of the battery).