i charged my battery and now i dont get any power why?

Asked by Aug 07, 2012 at 08:02 PM about the 2007 BMW 7 Series 750i

Question type: Maintenance & Repair

3 Answers

45

Have you tested your battery to make sure it is holding the charge? Sometimes batteries get dead spots in them that wont allow them to hold a charge. When you say you dont get any power, do you mean that nothing works that requires power, i.e. lights, gauges, radio, windows( if you have power windows), or that the car wont start?

2 out of 2 people think this is helpful.
3,135

Exactly. A battery is made up of connected cells. If one of those cells goes bad, the battery can be jumped and perform fine. However, the alternator will not be able to generate enough of a charge even after running a while. If you shut the vehicle off, the battery will be more or less dead. This sucks. I know. My factory battery in my E39 finally died after 12 years!

2 out of 2 people think this is helpful.
4,295

I agree with the other two that it might be a battery issue. To test this put a charger on the vehicle and see if everything works normally then is most likely a battery issue. If not then you need to start checking fuse, bst (battery saftey terminal). Hope this helps.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

7 Series

Looking for a Used 7 Series in your area?

CarGurus has 5,889 nationwide 7 Series listings starting at $3,400.

ZIP:

Search BMW 7 Series Questions

BMW 7 Series Experts

#1 lweems
lweems
Reputation 1,610
#2 Vince Lee
Vince Lee
Reputation 520
#3 Tom Demyan
Tom Demyan
Reputation 500
View All

Related Models For Sale

Used Mercedes-Benz S-Class
196 Great Deals out of 6,367 listings starting at $2,995
Used BMW 5 Series
642 Great Deals out of 15,157 listings starting at $1,877
Used BMW 6 Series
114 Great Deals out of 3,236 listings starting at $7,790
Used Audi A8
59 Great Deals out of 1,812 listings starting at $2,990
Used BMW 3 Series
1,468 Great Deals out of 38,438 listings starting at $1,700
Used Mercedes-Benz E-Class
586 Great Deals out of 23,560 listings starting at $1,450
Used Mercedes-Benz CLS-Class
73 Great Deals out of 2,304 listings starting at $5,999
Used Land Rover Range Rover
113 Great Deals out of 4,893 listings starting at $5,000
Used BMW X5
440 Great Deals out of 15,323 listings starting at $2,900
Used Lexus LS 460
117 Great Deals out of 2,778 listings starting at $8,945
Used Dodge Charger
395 Great Deals out of 30,065 listings starting at $2,343
Used Jaguar XJ-Series
70 Great Deals out of 2,430 listings starting at $1,995
Used Cadillac Escalade
288 Great Deals out of 10,687 listings starting at $1,900
Used Mercedes-Benz C-Class
889 Great Deals out of 32,550 listings starting at $1,750
Used BMW M5
26 Great Deals out of 657 listings starting at $9,499

Used Cars For Sale

2017 BMW 7 Series 750i For Sale
238 listings starting at $84,999
2016 BMW 7 Series 750i For Sale
3 Great Deals out of 21 listings starting at $79,544
2015 BMW 7 Series 750i For Sale
17 listings starting at $45,995
2014 BMW 7 Series 750i For Sale
51 listings starting at $35,900
2013 BMW 7 Series 750i For Sale
32 listings starting at $27,500