I have a 2007 BMW 351i and I'm charging the battery. It was pulling 8 amps at the beginning and is still pulling 8 amps after 2 hours of charging. Why is that? Shouldn't the charge be tapering off?

Asked by Jun 01, 2017 at 04:31 PM about the 2007 BMW 3 Series 328i Sedan RWD

Question type: Maintenance & Repair

4 Answers

104,425

2 hours at 8 amps is still a low charge rate, todays batteries really like slow low amperage charge rates so they can slowly build all of the cells at the same time, I would not worry about it yet let the battery charge overnight, then if it is still at that rate then you may have a bad cell. And don't just remove the battery or you could cause damage to the vehicles computer programming, it will need to be taken someplace where they have the proper tools to keep the system active during battery replacement. HTH

Best Answer Mark helpful

Very informative with good sound advice. Thanks Dave

104,425

Thanks for the points. I hope everything turned out to be good.

sounds like a dead cell. each cell is 2v with 6 cells total for 12v battery. if you ran a quality charger and the battery didn't recondition (take a full charge) then you likely have a dead cell. you can DIY the battery change, if you're a DIY/handy person. there are battery choices in the market (AGM, or lead acid) and they have different prices. A quality battery will last years. A cheap one will last fewer years. Choose wisely.

Your Answer

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 37,200 nationwide 3 Series listings starting at $1,000.

ZIP:

BMW 3 Series Experts

  • #1
    Tom Demyan
    Reputation
    5,160
  • #2
    Robert Charlson
    Reputation
    1,670
  • #3
    grolyate
    Reputation
    1,270
View All

Related Models For Sale

Used BMW 5 Series
531 Great Deals out of 17,001 listings starting at $1,500
Used BMW M3
29 Great Deals out of 2,170 listings starting at $6,599
Used Mercedes-Benz C-Class
866 Great Deals out of 30,905 listings starting at $1,500
Used Audi A4
324 Great Deals out of 13,169 listings starting at $1,899
Used Ford Mustang
606 Great Deals out of 39,000 listings starting at $1,500
Used Mercedes-Benz E-Class
701 Great Deals out of 23,231 listings starting at $1,795
Used Honda Accord
1,199 Great Deals out of 74,659 listings starting at $561
Used BMW X5
371 Great Deals out of 17,702 listings starting at $2,995
Used BMW 7 Series
113 Great Deals out of 5,622 listings starting at $2,999
Used BMW 6 Series
79 Great Deals out of 2,587 listings starting at $5,950
Used Dodge Charger
376 Great Deals out of 33,524 listings starting at $2,000
Used BMW 1 Series
51 Great Deals out of 997 listings starting at $4,990
Used BMW X3
274 Great Deals out of 10,430 listings starting at $3,100

Used Cars For Sale

2016 BMW 3 Series 328i Sedan RWD For Sale
16 Great Deals out of 576 listings starting at $18,989
2015 BMW 3 Series 328i Sedan RWD For Sale
6 Great Deals out of 447 listings starting at $14,899
2014 BMW 3 Series 328i Sedan RWD For Sale
55 Great Deals out of 974 listings starting at $12,999
2013 BMW 3 Series 328i Sedan RWD For Sale
17 Great Deals out of 497 listings starting at $11,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.