How long does the battery last without starting the car?

Asked by Feb 27, 2018 at 10:05 AM about the 2014 Mazda CX-5

Question type: Maintenance & Repair

We got back from a 4 week vacation, and the car's battery was mostly dead
and would not start. It worked fine after using jumper cables to start it and
driving it to charge it up again. How long does the battery last without starting
the car?

1 Answer

137,985

Your vehicle does have parasitic battery draws so if the battery was at 100% it would last approximately 3 weeks before it would not have enough amperage to crank the engine. This is why they make battery tenders for vehicles that sit for extended periods. You should never try recharging a dead or very weak battery with just the alternator, doing so greatly reduces the life of the alternator, some have even failed while instantly due to the high demands. So I recommend that you have the battery and charging system tested, if the battery suffered any it will show it on a load test. As for the alternator, some will show a drop in output but not always.

3 people found this helpful.

Your Answer:

Mazda CX-5 Experts

  • #1
    crivera326
    Reputation
    540
  • #2
    MMC2882
    Reputation
    520
  • #3
    halcatalyst
    Reputation
    490
View All

Related Models For Sale

Used Honda CR-V
56 Great Deals out of 3,855 listings starting at $1,999
Used Toyota RAV4
91 Great Deals out of 2,886 listings starting at $4,435
Used Mazda CX-9
11 Great Deals out of 548 listings starting at $4,995
Used Nissan Rogue
115 Great Deals out of 4,775 listings starting at $3,995
Used Mazda MAZDA6
13 Great Deals out of 603 listings starting at $1,000
Used Hyundai Tucson
39 Great Deals out of 3,004 listings starting at $949
Used Mazda MAZDA3
72 Great Deals out of 3,140 listings starting at $2,295
Used Subaru Forester
39 Great Deals out of 1,273 listings starting at $3,950
Used Ford Escape
129 Great Deals out of 5,879 listings starting at $993
Used Ford Edge
74 Great Deals out of 2,592 listings starting at $2,295
Used Volkswagen Tiguan
48 Great Deals out of 1,701 listings starting at $5,595
Used Jeep Grand Cherokee
78 Great Deals out of 4,820 listings starting at $3,499
Used Honda Accord
58 Great Deals out of 1,726 listings starting at $1,795

Used Cars for Sale

2019 Mazda CX-5 For Sale
668 listings starting at $27,850
2018 Mazda CX-5 For Sale
25 Great Deals out of 776 listings starting at $24,795
2017 Mazda CX-5 For Sale
4 Great Deals out of 57 listings starting at $24,471
2016 Mazda CX-5 For Sale
10 Great Deals out of 484 listings starting at $11,995
2015 Mazda CX-5 For Sale
4 Great Deals out of 193 listings starting at $8,977

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. Content will be removed if CarGurus becomes aware that it violates our policies.