Batteries that are properly cared for will typically last three to five years. However, there are many factors that will affect how long your battery will last. This includes your driving habits, electronic demands, and the climate. You should have your battery tested regularly. The mechanic may recommend that you replace your battery every three years.
There are also other signs that you may notice. For example, the connectors may be corroded. This can result in voltage issues. You may also have trouble starting your car. Additionally, the battery case may be misshapen. If your car is exposed to extreme cold or heat, then the battery may swell and crack. Your battery case is supposed to be rectangular. If your case is in any other shape, then it is time for you to get a new battery.