Bill/Diana wrote:
Something seems to be draining on the battery. Any ideas on what to check and how to check it?
12.46 is NOT fully charged.
You often can not find out what the real problem IS in just a couple of hours.
First, you need to fully charge the battery.
And then disconnect it and monitor the voltage for a few hours......because even a new battery can go bad.
Since this is the "starting battery" (AKA chassis battery), the most common causes are a door left ajar or a dome light left on.
More information is needed about the make and model to get specific advice.
You NEED a multi-meter to properly test.
P.S. I suggest that it would NOT be a good idea to leave on a trip tomorrow......unless you find out for sure what the problem IS.