2008 Ford Escape Q&A
2008 Ford Escape Question: When the battery is disconnected, how can it run down over a 4 hour period?
I had my battery replaced and that night, it was down again. I had it taken back home and checked. No one knows what's wrong. Only a dealer can tell with the computer check thing. their charges are always double what the local garage charges. Why? How do you find the recall list on this car? - GwenWinter
A fully charged battery should read 12.6 volts, with the battery disconnected a good battery will not discharge if left for two or three weeks. It sounds like the battery is defective. Two tests for a battery is a hydrometer test (not always possible on modern batteries) and a high rate discharge test. Turn on the ignition switch to the on but not run position do you see an icon on the instrument panel representing a battery, if you do not see this battery icon the alternator is not seeing power to allow it to charge. Start the engine does the battery icon go out. Put a volt meter across the battery terminals with the engine off, at rest the battery voltage should be 12.6 volts if the battery is fully charged. Now get a friend to start the car while you watch the voltmeter, the voltage reading across the battery should read approximately 14.6 volts if the alternator is charging correctly. - patrick mannion