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TOP TEN MYTHS ABOUT BATTERIES 4. A BATTERY WILL NOT LOSE ITS CHARGE SITTING IN STORAGE. Depending on the type of battery, it has a natural self discharge or internal electrochemical leakage rate of 1% to 15% per month that will cause it to become sulphated and fully discharged over time. Higher temperatures accelerate this process. A battery stored at 35 degrees Celsius will self discharge twice as fast than one at 23.9 degrees Celsius. 5. MAINTENANCE FREE BATTERIES DO NOT REQUIRE MAINTENANCE. A maintenance free battery still must be kept fully charged when in storage and the case clean and dry. Make sure all terminals (top or side) are clean of corrosion. You will not be able to add lost water due to excessive charging or evaporation in high temperature applications. 6. TEST THE ALTERNATOR BY DISCONNECTING THE BATTERY WITH THE ENGINE RUNNING. A battery acts like a voltage stabilizer or filter to the pulsating DC produced by the charging system. Disconnecting a battery while the engine is running can destroy the sensitive electronic components, for example, emission computer, audio system, cell phone, alarm, system etc, or even the charging system itself. These damages can occur because the voltage can rise up to 40 volts or even more. In the 1970's, removing a battery terminal was an accepted practice to test charging systems of that era, but not so today. Just say NO if anyone suggests this. 7. PULSE CHARGERS, ASPIRINS OR ADDITIVES WILL REVIVE SULPHATED BATTERIES. Using pulse chargers or additives is a very controversial subject. Most battery experts agree that there is no conclusive proof that more expensive pulse chargers work any better than constant voltage chargers to remove sulphation. There is no evidence that additives or even aspirins provide any long term benefits. 1 :: 2 :: 3 |
