New here - am having a problem with my 08 G37S Coupe. Seems the battery goes dead often. I get it jumped and take it to the dealership and they say battery is fine. I feel that since it has a push to start and a fob for a key that when I shut the car off, something is not shutting off entirely. Love the car, but this is troublesome. Any one else have this problem?
Dead Battery Often!! G37S
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telcoman
- Posts: 5762
- Joined: Sat Jul 08, 2006 11:30 am
- Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
- Location: Central NJ
Re: Dead Battery Often!! G37S (Lawin4cr)
Here is a cheap tool for checking batteries. (Sears automotive about $10.00) With the engine running if you have a multimeter (cheap ones at radio shack about $20.00 you should read about 14v across the battery terminals)Lawin4cr wrote:New here - am having a problem with my 08 G37S Coupe. Seems the battery goes dead often. I get it jumped and take it to the dealership and they say battery is fine. I feel that since it has a push to start and a fob for a key that when I shut the car off, something is not shutting off entirely. Love the car, but this is troublesome. Any one else have this problem?
A weak cell not accepting a full charge can cause your problem.Check the specific gravity to see if you have a weak cell. All vehicles draw a small amount of current. We left my wifes 09 Altima in the garage for a month and it started right up after we returned. If you haven't added or modified anything electrical I'd assume it is a defective battery that will get pro rated.
good luck and welcome to NICO
Telcoman
Re: Dead Battery Often!! G37S (Lawin4cr)
Some people have reported their original batteries dying in as little as three years. One symptom of a failing battery is that it seems to be fine immediately after recharging but doesn't hold a charge very long. The definitive test is to apply a heavy load. A battery that performs poorly is on its last legs and should be replaced.
Since you don't seem to be getting any satisfaction from the dealer, consider taking the car to an auto parts store or to a well recommended independent shop. They can perform the test and, if appropriate, sell you a new battery and install it. Consumer Reports found that some brands of batteries are better than others. Interstate was one of the good brands.
Another possibility is corrosion between a battery terminal and the connector. The battery may be fine, but the current can't get through the corrosion. Since your car starts fine after you get it to the dealer, I doubt this is your problem.
A third possibility is that you have let the car sit too long without being driven. Even when turned off, modern cars impose a small, but significant, drain on the battery. You can stop this by removing a battery cable but then you lose all memory settings. Like Telcoman, I have found that you can let the car go for a month without driving it. Two months is too long. If you park your car during the winter, your options are to disconnect the battery and lose the memory settings, put the car on a battery maintainer (which isn't the same as a charger), or put the car on a charger for two or three hours every month.
Since you don't seem to be getting any satisfaction from the dealer, consider taking the car to an auto parts store or to a well recommended independent shop. They can perform the test and, if appropriate, sell you a new battery and install it. Consumer Reports found that some brands of batteries are better than others. Interstate was one of the good brands.
Another possibility is corrosion between a battery terminal and the connector. The battery may be fine, but the current can't get through the corrosion. Since your car starts fine after you get it to the dealer, I doubt this is your problem.
A third possibility is that you have let the car sit too long without being driven. Even when turned off, modern cars impose a small, but significant, drain on the battery. You can stop this by removing a battery cable but then you lose all memory settings. Like Telcoman, I have found that you can let the car go for a month without driving it. Two months is too long. If you park your car during the winter, your options are to disconnect the battery and lose the memory settings, put the car on a battery maintainer (which isn't the same as a charger), or put the car on a charger for two or three hours every month.