I have a 77 Corvette that has a small hood light that is on when the hood is up. It is been too hot to drive it lately, as the A/C does not work. I ran it about 2 weeks ago, and left the hood up after I turned it off, not thinking about the light. I have owned the car since 78, and have never done this before (left the hood up). I guess I did this time because it was so hot weather wise, and the engine was hot after running about 35 minutes. I meant to go back out and put the hood down later, but totally forgot about it until a few days later when I went out in the garage. I put the hood down then, and the light thing did not dawn on me at all. I also have a carport which houses the cars I normally drive, so I had not been back in the garage until the few days later.
I went out in the garage today to start the Vette and another car to let them run because I am going to drive the other car tomorrow. When I went to start the Vette, it wouldn't start, nothing at all, turn the key-nothing. I started thinking...what in the world?!?!? The battery is brand new, a DuraLast Gold. I mean new, like 3 weeks old. I started thinking it is just like a dead battery, but it can't be, unless it was a bad battery. I started thinking it could be the starter. I kept thinking, and thinking, and thinking, and thinking... Then, I remembered leaving the hood up with the hood light, and that it was up for a few days. Then the light came on in my head'-the hood light would run the battery down. Duh! Talk about feeling dumb! I'm a car person, and I did this! I have been very busy, and a lot on my mind, so I will use that as an excuse, but I cannot believe I did this. -it being a new battery, a DuraLast Gold 9 year battery, will it charge up if I put an overnight charge on it? Or, did it run down to completely dead? Hopefully, it will take a charge! It's worth trying, but I want your opinion before I go to the trouble of trying to charge it. By the way, the last battery that was in it was also a DuraLast Gold 9 year battery, and it lasted about a month shy of 10 years. That is a good battery.
Please advise, and thank you in advance.
Two days would be enough time in my opinion to drain the battery, yes. In my opinion if you set trickle charge that battery should be fine, I am confident that you may not have a bad cell. Try to slow charge/trickle and you should be good to go !!
Have no fear, you can charge up the new battery and it work with no trouble. If you do have a problem, you can take the battery back to where you bought it, with the receipt and they should warrantee it for you.
Thanks for writing in,
Audra (the auto-motivator)
〉 Answered on Nov 20th, 2010 by Audra Fordin, Owner at Great Bear Auto Shop
Charge the battery and you should be ok
〉 Answered on Sep 2nd, 2010 by Barb Petrey, President - DBK Enterprises Inc at Jiffy Lube
I have had these batteries before and they are high quality, one of the best short of a genuine Optima (not the clone Exide makes) If the battery has not frozen, they will almost always charge up, even from a completely "dead" state several times. However, the more times this occurs, the less capacity the battery will have unless it is a deep cycle battery designed for wide fluctuations in energy storage. I have actually had one recharge after going completely dead 10 times in an 88 Corvette that had an irritating drain through the security system. Thanks Super Girls Auto.
〉 Answered on Sep 2nd, 2010 by Laurie Sarno, Co-Owner at Super Girls Auto
If it's a new battery, you should be able to give it a charge and you're good to go. If you have a trickle charger that would be best, something that shuts itself off automatically once it reaches a full charge.
If it won't hold a charge, then I'd take the battery back and have it checked on their machine. You should be able to get a new battery under warranty or at least have it pro-rated. Good luck.
〉 Answered on Sep 2nd, 2010 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines
To properly charge a battery that has been run complete flat, one must use more than a trickle charge.
If you have an automotive style charger, place it on the charger and monitor your cells after six hrs. The time it takes to charge a fully discharged battery, depends on the amperage rating of your charger and the cold cranking amps (CCA) of your battery. Using an educated guess,I believe your battery is around 600cca, so if your charger is putting out 12 amps it'll charge in approx. 5-6 hours.
If you are doing this from home, you always have the risk of an explosion of hydrogen gas...wear protective clothing and avoid sparks!
MY recommendation: take the battery back where you purchased & they will happily charge it properly for you...after all it's NEW!
〉 Answered on Sep 2nd, 2010 by Pat Fleischmann, Director of First Impressions at Community Tire Pros & Auto Repair