The good news is that the new battery can sit unused for two to four years and still work—as long as it’s properly stored and maintained. Your unused car battery can be safely shelved for years if you: Store the battery upright. Keep it in a dry, well-ventilated area. How long do car batteries last?
Typically, however, you can reasonably expect a car battery to last about 5 years. This is the average, so you might get more or less from your battery, it all depends on how much you use your car, how often you have maintenance and checks on it, how well your electrical system works and the conditions you subject the car to.
A car battery can sit on a store shelf for up to six months without losing its charge, according to experts. However, if you plan on storing your car for longer than that, it’s best to disconnect the battery and give it a charge every few months.
These types of batteries can be stored for long periods, even up to two years. How you store them is very important. Make sure the location is somewhere the battery cannot get damaged. Most important is the storage temperature. Try to find somewhere with a steady temperature of around 10-15 degrees Celsius or less.
If you know your car battery is relatively new and has been kept in good condition, it can probably sit unused for about two weeks before it goes flat. If you’ve left your car unused for over two weeks, it’s quite likely you’ll need professional assistance. How long can a BMW battery sit without removing it?
Typically, your car can sit about four weeks to two months without driving before the battery dies. The reason your car can sit only for so long before it dies is the fact that your car battery is in use even when you’re not behind the wheel. For example, even when your car is off, your car battery is powering the dashboard clock, alarm, and radio.