What You Should Know About the 2009 Nissan Maxima Battery Draining Problem

If your 2009 Nissan Maxima has a battery draining problem, here’s everything you need to know to fix it.
Written by Talullah Blanco
Reviewed by Melanie Reiff
The 2009 Nissan Maxima battery draining problem may be caused by a bad battery, faulty alternator, or corroded cable posts. While diagnosing the problem may be tricky, most of the solutions are relatively affordable. 
We’ve all encountered a dead car battery and the frustration that comes with it. But if you own a 2009
Nissan Maxima
, jumpstarting your dead car battery is likely a part of your morning routine.
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What causes the 2009 Nissan Maxima battery draining problem?

2009 Nissan Maxima drivers report their car battery draining overnight, over short periods of time, and while driving. To fix this frustrating issue, you have to understand the source of the problem.
If your car battery is draining overnight or over short periods of time, you likely have a bad car battery on your hands and it will need to be replaced. However, a faulty alternator will cause your battery to drain while driving. 
If you are lucky, corroded battery cables or something is drawing power when it shouldn’t be (think lights left on overnight) are the cause of the 2009 Nissan Maxima battery draining problem. They're both quick and easy to fix!

How to fix the 2009 Nissan Maxima battery draining problem

Taking your 2009 Nissan Maxima to a trusted mechanic to have the battery draining problem properly diagnosed is the best way to fix it. You should consider leaving your car for several days so the technician can observe the battery drain and find the source of the issue. 
If you are dealing with a bad battery you’ll have to replace it. Luckily, a Nissan Maxima battery replacement costs between $182 and $190 depending on the shop you go to. If you are looking to save a few bucks, you can purchase a battery from an auto parts store and replace it yourself to eliminate labor costs. 
Here’s how to replace your car battery:
  • Check the owner’s manual for your car battery’s location
  • Identify the positive and negative posts and their respective cables
  • Loosen the bolts that secure terminals and cables to the battery post with a wrench
  • Disconnect the terminals and cables from the battery posts
  • Remove the retaining clamp holding the battery in place
  • Lift out to remove the old battery
  • Examine the cables to ensure their clean and corrosion free
  • Align the new battery to the positive and negative terminals
  • Insert the new battery and secure the retaining clamp
  • Apply anti-corrosion grease to the battery posts
  • Connect the positive terminal to the positive post and then connect the negative 
If your car battery continues to die after you’ve replaced it, you may want to check out these culprits:
  • Your faulty alternator is not charging your battery
  • Something is left plugged into a charge port and draining power when it shouldn’t be
  • Corroded battery posts need to be cleaned with a wire brush

How to save money on Nissan Maxima insurance

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