Re: Battery problem?
"tom" <email@example.com> wrote in message
> fully charge the battery, and do a load test. that will tell you if the
> battery is good or not
I think you have a current leak someplace. I doubt the battery will go from
working ok to completely dead in just one week (I am not in any way
suggesting that it can't happen - a plate can crack or something). I think
the most likely place is the voltage regulator. So you need to search for a
current leak. Otherwise, you will end up with a new dead battery.
> "azazel scratch" <firstname.lastname@example.org> wrote in message
>> Two weeks ago I went to start my '78 Granada and the battery was
>> completely dead. I only drive this car once a week now but I used to
>> drive it every day to work. I checked immediately to see if I left
>> anything on. Nothing was left on. I didn't leave the lights on, the
>> hood, trunk, and glove box were all closed so their lights were off.
>> The only things that always connected to the battery are the digital
>> clock and the am/fm cassette radio. I charged the battery and installed
>> it on my other car. The car started every day over a week period. I
>> reinstalled the battery on the Granada, which is left outside. After
>> driving the car about 80 miles or so, I parked in front of my house and
>> disconnected one battery cable. I wanted to elimintate the cold causing
>> the battery to discharge. After 1 week, I reconnected the battery cable
>> and the car started immediately. I drove another 80 miles, returned
>> home, and left both battery cables connected. Last Thursday, the
>> battery was again dead. The only thing I suspect is that this 6 year
>> old battery can't source the very small current to turn the digital
>> clock and keep the time and channels memory of the am/fm cassette radio
>> 24 hours a day for a few days. I can disconnect the wires for the clock
>> and radio.
>> The Granada is charging the battery. I connected a shunt between the
>> alternator and the wire that goes to it and the meter shows the charge
>> current. I also put a voltmeter across the battery posts and when the
>> engine is running I read 15 volts. With the engine off I read 12
>> volts. Does it sound like it is time to replace the battery?
>> Thank you