If your car sits idle for long periods, the battery can slowly lose charge — especially with modern electronics drawing power even when the engine’s off. Here’s how to prevent that:
1. Drive Weekly at Highway Speeds
Take your car out for at least 30 minutes once a week. This allows the alternator to fully recharge the battery and keeps it in good condition.
2. Use a Battery Maintainer (Trickle Charger)
A smart maintainer automatically keeps your battery at an optimal charge and shuts off when full — perfect for vehicles in long-term storage.
3. Disconnect the Negative Battery Cable
When parking for extended periods, disconnecting the negative terminal prevents parasitic drain from electronics like clocks or alarms. (Note: this may reset radio and clock settings.)
4. Remove and Store the Battery Indoors
For storage lasting several months, keep the battery in a cool, dry area between 40–60°F (4–15°C). Use a battery box for extra safety.
5. Avoid Extreme Temperatures
Both heat and cold can accelerate battery discharge. Park in a garage, shade, or covered area when possible.
6. Check for Parasitic Drains
Malfunctioning electronics or lights left on can slowly drain your battery, even when the car is off. Inspect and fix any electrical issues promptly.
7. Charge Every 4–6 Weeks
If you’re not using a maintainer, manually recharge your battery with an external charger every month or so to maintain health and longevity.
