Time for a new car battery???
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 987
Likes: 152
From: California
Time for a new car battery???
Hi... I have an “85 PG” AC Delco battery in my 2012 Grand Sport…. Been in the car now for 4 1/2 years and I drive a few times each week but only maybe 5 miles or less on each trip…. When in the garage I pretty much always put it on an Optima 400 Battery Charger I bought when I got the previous battery…. Battery will usually show 60 to 80% when I first hook it up but it always comes up to 100% in a short few hours…. But just yesterday and now into today, the battery, for the first time is only coming up to and staying at 80%…. This is over a day now and still at 80%…. Is this telling me it’s time for a new battery??? Any help would be appreciated... thanks…
Melting Slicks
Joined: Jul 2014
Posts: 2,138
Likes: 204
I have a 2011 GS still with the original battery. Recently had the tender go from solid green (fully charged) to flashing green(80%). Stayed like that for a few weeks until I decided to look into it. Turns out the tender went bad. Bought a new one and it went to solid green again.
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 987
Likes: 152
From: California
Bought a new AC Delco 85G (Gold) battery and had it installed yesterday (easy install and I did the previous 2 batteries myself but my nearby Chevy dealer offered to put it in quickly and for a very modest charge).... So looked back on my battery history, the original lasted 4 1/2 years... The 2nd, a lesser Delco battery (Silver), only lasted 2 1/2 years... Now this third one (gold) lasted again 3 1/2 years... Pretty amazing that you, JetStreamGS, have a battery that is 13 years old and still working ok... Certainly not been my experience.. Charged my new battery all day yesterday and it came up to 100% and "maintaining" the battery, something the previous battery could no longer reach...
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 987
Likes: 152
From: California
What brand of battery is it??? Sounds like it would be AC Delco if it's original in your 2011 GS, right???? My last one has been on a tender pretty much all the time it's parked but still only lasted 4 1/2 years... If what I saw that it would no longer fully charge over two continuous days meant that it was on the way to failing, a bit of a guess on my part....
Thread Starter
Burning Brakes
Joined: Jan 2012
Posts: 987
Likes: 152
From: California
I do have the "mild to wild" fob that allows me to leave the exhaust in what would be inner pipes always open but I thought I read that caused NO current draw while it WOULD have a draw if I left the setting in what would be called "mild" (inner pipes closed until hitting 3800 rpm)... But good point... Might be something going on I should maybe try to measure or take it to the Chevy dealer to have them check all the electrical... thanks...
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