New owner battery question
 

Hi to all ,new BMW X5 2011 35D need advice with the battery ,I purchase this car from the auction and has 103 000 miles I have no clue on the history of the car I know that I have to do some works but I an fine with that this car has not warranty,this is going to be my weekend machine .
It has some message on the main screen (chassis stabilization malfunction and dsc xdrive malfunction. No other code show on the dash and the engine sound very very nice
I need to start with the battery ,this car came with the 90a white battery and it need to be replaced
I try to charge this battery with a 2 amps charger and after 48 hours the auto charger was unable to fully charge so I puti back on the car to see if it start but no ,no cranking enough to start the car .
Has any one use a optima red top battery on this car ?
Thanks in advance

I would recommend getting a normal 49/H8 AGM battery...then finding someone that can register it (if you don't have the software/hardware to do so). This battery class size will have the specs you need (usually 90 AH or higher regardless of the brand).

A 49 H8 AGM battery will have the specs needed for you vehicle (see examples below):


http://bimmerboard.com/members/q/ori...0H9%20Info.jpg

thanks on the picture it look very similar to the old one
regards

Do not think an optima red top is an AGM

DO NOT think 'upgrades' as you fix/maintain/repair your car. Think "stock/baseline/back to factory specs". Once you get it working right, then move forward from there. Just saying.

Do you have a BMW code reader? Carly or INPA or ???

You will need it.

i like the optima red top i have one of this batteries on my other tdi for the last 4 years and the performance is outstanding th4 one that i have is the 34/78 800cca amps and 1000cca at 33 but i live on miami (always warm )so it will push more than that i put it on the x5 and it started like a breeze
and i have the creator c310 and honestly i dont know how to use it it will show codes and numbers that i will have to learn how to use .
i also place an order for the kan impa usb interface cable and software .
an i an open to any ideas.
regards