

Turn off all the devices in the car and make sure you have a fully charged battery ready to go. However, it can be much more difficult to find a parasitic drain. A quick inspection can also indicate if you have loose or corroded connections. So, what’s causing your battery to drain and how can you fix it? If you made a mistake and left something running, your cause is fairly obvious. However, if you drive in extreme temperatures or push your vehicle to its limits, you might go through batteries more often. In normal conditions, the car battery can last between three and five years. Sometimes, the battery simply becomes too weak and old to hold a charge.
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Ideally, you want to take longer drives, preferably on the highway for a full charge to occur. If you only drive down the street to visit the local grocery store, you aren’t allowing the alternator to work.

The alternator needs time to charge the battery. It doesn’t hurt to do a regular inspection of the cables and terminals to ensure everything is clean and connected. Loose or Corroded Battery ConnectionsĮven if the alternator is working correctly, it can be difficult to get a full charge if the battery connections are loose or corroded. RELATED: 6 Symptoms of a Bad Alternator 6. The typical alternator will last about seven years or between 100,000 and 150,000 miles. When the alternator goes bad, the battery cannot recharge. It also helps power the electrical systems in the car. The alternator is responsible for charging the battery. Plus, this build-up makes it more difficult to charge the battery completely. Lead sulfate crystals begin to build-up, which leads to long-term depletion. If the temperature dips below 10 degrees Fahrenheit or exceeds 100 degrees Fahrenheit, the battery can suffer. Your car battery doesn’t handle extremes well. A faulty door light switch is an especially common culprit – it will let the lights in the car stay on and drain the battery. There could be many more difficult reasons for this.
