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dead battery after a month? covered under warranty?

8K views 23 replies 19 participants last post by  TrentP 
#1 ·
so i've been gone out of state working for over a month now. my wife hasn't had time to take my car for a drive here and there but she finally was able to this morning...

only after her dad had to help her give it a jump start due to a dead battery? he put my battery jumper on it and she said it only read like 7.5% of 100% battery voltage!? i know cars aren't mean to sit for months at a time because gas sitting isn't good for the engine as well as the battery isn't getting a charge.

but really? only a month and it was that dead? does this sound right?

do our warranties cover batteries? this is actually the first car i've EVER owned that the warranty wasn't expired so i'm new to the whole warranty thing.

please let me know your thoughts on this
 
#6 · (Edited)
There is a parasitic drain on all batteries in modern cars from the electronics. Some cars drain the batteries faster than others if they sit too long. I have to keep a trickle charger on my Camaro for this reason because if it sits for a month the voltage drops too low.
 
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#10 ·
2 week is normally when battery be drained of capacity to turn engine.. NORMAL with all the "keep alive" going on..

Anything after 3 1/2 year with OE HYundai battery is a crap shoot.. more you drive car as a dailey driver, the better off the battery is for lasting a little bit longer.

Some of these new cars I see during PDI seem to have silly low CCA rate batterys, like they got a discount on bulk purchase or something..
 
#12 ·
If I have to leave a car sit for more than a couple of weeks, I disconnect the negative battery cable-- it just take two minutes to reconnect it. I keep a small wrench in the glove box just for that. It's a pain to reset the radio and things-- but if it goes low/dead and won't start, it is a bigger P I T A.
 
#14 ·
Agreed. In Florida you might get 3 years out of a battery due to the heat. Mine only lasted 2ish years. Just got it replaced late last year. I was already out of warranty for it so I just got it at Auto Zone.
 
#15 ·
Cold has the same effect. But I got 4 years out of my OEM battery and it was still doing fine when I got rid of it.

But agreed with the poster who said batteries just aren't made as well anymore. I remember on my parents' older cars we would get at least 5 years out of the battery. Also we could pour coke in them if the water level got low. Nowadays everything is made to last a short amount of time and be thrown out.

Starting to feel that way about the Red Sled with all the problems that have crept up...
 
#17 ·
When I bought my Sonata I gave my son my 10 year old 2004 Camry which I bought brand new in 2004. The battery was 10 years old and never died but our mechanic said it was a little weak and we should replace it before next winter. An OEM 10 year old battery last that long!!!! Can you believe that?!?! And the exhaust system including the Muffler is original OEM too! Other new cars I previously bought I think I replaced both the battery and muffler within the 1st 4 years.
 
#21 ·
There are good batteries out there if you buy a good replacement. Just get one with the highest rated CCA (Cold Cranking Amps) and a long guarantee and it will last you for many years. I always do that on my cars because if you just buy an OEM rated replacement you are probably not going to be getting a good enough battery in terms of it lasting for 4-5 years.
 
#23 ·
Only a handful of companies make batteries. BTW the 124R is going to be the name CCA regardless of what name is on it. They're all 700 CCA and they're all made by JCI. Buy from the shop that has best warranty. The best I've seen is from Advance Auto with 3 yr free replace + 2 years prorated. Also, prices can be negotiable. Try it.
 
#24 ·
The battery on my 2014 Elantra (with less than 10k miles) has gone completely dead on me twice after parking the car for about two weeks while on a military exercise. The battery was so dead that the key FOB wouldn't work and the first thing to happen when starting to jump the car was that the car alarm would start wimpering to life. It is embarrassing to have to get jumped by a 1970's era car that has been parked for just as long with no issues!
 
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