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Car Forum / Ford / Ford Focus / October 2008Battery charge question
The engine seems to be turning over slower lately. The battery measures 12.88v at rest. I put a 6A charger on it and it reads 16V when charging. Is the battery ok? I don't want to get stuck out in no mans land when the battery fails. It is 3 years old and is a 72 month battery. Being in Florida, it doesn't see much temperature extremes. Should I just get a new one? Jay > The engine seems to be turning over slower lately. The battery > measures 12.88v at rest. I put a 6A charger on it and it reads 16V [quoted text clipped - 4 lines] > > Jay Must be quite a serious charger if it pulls it up to 16V. Either that or the battery is close to open circuit, in which case it wouldn't start the car. I'd give it a good test: First make sure it's fully charged, leave it overnight to check that it's not leaking power (assuming nothing in the car is leaking it), then give it a good test - all lights, heaters, blowers etc on for a good 5 minutes, then see if it starts (several times). If the battery is good, it should a load test may be in order. but you can make sure the terminals are clean and the alernator is charging proper voltage. ---------------------------------------------------------------- http://www.minibite.com/america/malone.htm > The engine seems to be turning over slower lately. The battery > measures 12.88v at rest. I put a 6A charger on it and it reads 16V [quoted text clipped - 4 lines] > > Jay Just take it to one of the many auto parts places around the country, most will test your battery for free. I know AutoZone does. >> The engine seems to be turning over slower lately. The battery >> measures 12.88v at rest. I put a 6A charger on it and it reads 16V [quoted text clipped - 7 lines] >Just take it to one of the many auto parts places around the country, most >will test your battery for free. I know AutoZone does. You really do need to take it for a free test. The "rest" volatage is not a good test. It needs to be tested under a load. |
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