my 2005 mercury check charging light on a few days later it came on again then cars went dead have alternator checked it was good car started after a jump drove it to work and back home checked charging system ligh came on again car did not go dead this time could it be my battery
Could be a battery. Maybe you have a dead cell in there
The light may look like a battery but it comes on when the alternator is not charging the battery. When the light is on, your car is using the power of the battery to continue to run. The battery should have around 12.5 volts with the engine off and 14-14.5 volts with the engine running. It sounds like your alternator is failing.
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