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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Sat, Jan-28-2017, 06:17:01 PM   #1
#1P4PKing
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Question Replacement Battery: Any aftermarket recommendations?

Hey all,

I have been getting a battery draining while car is off alert lately, and while doing some research online, this can be several different things, I have decided to replace my battery.

Poking around here and other forums, the cost + labor to install a new OEM is like 500 USD, and it seems many people recommend getting a "lightweight" aftermarket replacement.

Can anyone shed light on this? What brands are recommended, are lightweight batteries just lighter?

Any additional pros and cons here?

Thanks!
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Old Wed, Feb-01-2017, 01:59:43 AM   #2
Mfanaticnyc
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Default Re: Replacement Battery: Any aftermarket recommendations?

Not sure bout lighter ones but pretty much batts are made by 2-3 companies. Get one with the best warranty and have it coded.
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Old Wed, Feb-01-2017, 02:07:17 PM   #3
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Default Re: Replacement Battery: Any aftermarket recommendations?

I used an Autozone AGM battery. I forget the model, but think it is H8. All the warranties are really 3 years now. The stock and aftermarket ones weigh about 60 lbs. The car is power hungry and I think a lower capacity one won't last as long and could be risky in severe cold or if you let the car sit for a week at a time without using a charger. If you don't drive your car in winter, or keep it on a trickle charger, a lower capacity one might be fine for a few years. I forget the models for the lower capacity batteries, but it might be H6 and I think you can even run a Mini battery if the car is really a warm weather trickle charger car. I drive my car year round, so I bought the full size AGM replacement.
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Old Wed, Feb-01-2017, 05:50:55 PM   #4
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Default Re: Replacement Battery: Any aftermarket recommendations?

http://shop.advanceautoparts.com/p/a...49h8/2130012-P

Use coupon code TRT30 to get $50 off and do local pick up. New battery with higher capacity for approximately $110. Code and register with an indy or private guy for another $50-100.
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Last edited by 04yfz; Wed, Feb-01-2017 at 05:58:40 PM.
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Discussing Replacement Battery: Any aftermarket recommendations? in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)