turboawd

the walmart battery doesnt have as many amps, and is smaller in size. will need some work to get it to bolt in.

hmc

The one I mentioned has 850 CCA which matches OEM battery.

turboawd

you sure it wasnt the 94r battery at walmart? that is the only battery they sell for bmw i thought, and its rated at 730 cold cranking amps.

walmart battery is ok to replace the smaller bmw batteries.

hmc

There are many types of BMW OEM batteries. See: http://www.realoem.com/bmw/showparts...42&hg=61&fg=30

My OEM's is rated 850CCA and EverStart MAXX-49 is for that direct replacement.

Anyway, my point was battery registration is not worth it at all if only downside (without registration) is POSSIBLE shorter battery life.

browncow

Battery must be registered after replacement, especially if it differs at all from OE. I have the repair bill to prove it.

At the time I purchased my vehicle, the dealership (non-BMW) recommended replacing the battery after their inspection. I pushed them to replace as a condition of sale, which they did with what Interstate Batteries' website says "fits" a 2006 BMW 530i, BUT they did not register it.

Although it "fits", it is not exactly the same as OE. I wrestled with messages about high drain, a couple of mornings where it wouldn't start, etc. and 6 months later after not registering, I end up with a dead alternator and 2 bad ignition coils.

Spend the couple of bucks and have someone register the damn thing.

m_baby_m

hi all

BMWhat supports battery registration and switching the battery type by a new in-App. tried it out yesterday, worked like a charm... and by the way, I saved a lot of money instead of going to my mechanic

NguyenAzn

I just replaced the battery yesterday in a good mechanic shop. He gave me the same specs battery but the brand was Ford. Everything was woring fine but then i still display the intensive battery discharge and it keeps telling me to set date and time. The mechanic did use the machine and reset the car. I been keep it running for awhile now and hope the message dont come back no more. Any ideas guys ?

JohnL

Hi

I just did this a few hours ago and the clock has stopped resetting, my car a 06 523i, so I hope all goes well, not sure if it will have any long term effects, obviously the car can no longer monitor the battery level with IBS disconnected

it may help you, see link below
John

GreenMTNE60

I've looked over these forums regarding new battery installation and registration fairly extensively, but I still have one question I can't seem to find the answer to;

Is it necessary to registered the new battery if you have the IBS disconnected?

I recently installed a Duralast H8-AGM into the car. The previous owner had the IBS disconnected claiming it can cause parasitic draw and has been known to cause other issues. It is my understanding the the IBS MUST BE CONNECTED when registering a new battery, which leads me to believe that if I intend to keep the IBS off the battery, registering the battery is unnecessary and frankly, wont work.

Thoughts and comments about not having the IBS connected, and the need to register a new battery if I don't have this connected??? Should I connect the IBS, register the battery, then take it back off?

Thanks in advance.

JayArras

The answer is yes unless the replacement battery was an exact match spec-wise (i.e. battery type, CCA, etc. The IBS doesn't really enter into the equation.