But, if the cells within the battery have been exposed to air for a long time, it can cause a problem. If they are low, usually refilling them with distilled water will help. ![]() With wet-cell (flooded) batteries, water levels must be maintained. Cracks, splits, and holes will not cause a battery to stop working, but for safety reasons the battery should be labeled unsafe to use. Other signs such as physical openings in the case are often caused by mishandling. If the battery is still intact, but there is a bulge in the case, this is usually a result of being overcharged. That produces a lot of heat, and sometimes even causes the battery to explode. When a battery short circuits, all the power is unloaded in an instant. If a short did occur, there would be some indication of burning or melting. There are a few things to inspect:īroken or loose terminals are dangerous and can cause a short circuit. Sometimes you can tell if your battery is bad by simply taking a good look. How to test a battery: Here are some ways to test your battery at home, and determine if it's bad: 1) Inspect the Battery If your battery is having trouble holding under load, then chances are it's a chemical issue. What we're dealing with is a lead acid battery in a plastic box that encases a delicate balance of chemicals which are ready to interact with each other to produce electricity when the load is applied. Also, batteries don't "leak" power like water can. You can't use up half now, and then wait and use half later. To clear up a misconception: a battery isn't like a water bottle. ![]() Almost everyday, we receive calls and comments about batteries that "won't hold a charge" any more. Having battery troubles? Yeah, we hear you.
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