There are a few things you can do to tell if your car battery is weak or in need of a recharge. The first is to check the voltage. If it’s below the manufacturer’s recommended level, it may need to be replaced. If it’s above, your battery may be healthy and just needs a charge. Another indicator of battery health is how long it has been since the last charge. A low battery will usually last around 3-4 months before needing a new one, while an overcharged battery will last anywhere from 6-12 months before needing to be replaced. Finally, you can test the charging port by plugging in an outlet and checking the voltage and current coming out. A good port will have both at full power when you plug in, while a bad port will only have one or the other at full power.
