How To Prevent Battery Drain Car. A poorly maintained or weak battery may not hold a charge very well. Corroded or loose battery connections.

Unlike the plug-in hybrid RAV4 Prime the Toyota RAV4 Hybrid doesnt have a lithium-ion battery pack Car and Driver explains. Instead it has a 16-kWh nickel-metal-hydride battery connected to 3 electric motors and a 25-liter four-cylinder engine Car and Driver reports. Either way you can proactively inspect and prevent further battery troubles when you know how to check the status of your car battery.
Here are two other methods used by car owners and mechanics.
There are other ways to test your car battery aside from the multimeter. Even small drains like the memory function in your car radio may kill a very weak battery. Corroded battery connections can prevent the charging system from topping off your battery when you are driving. In either case if you dont drive your car regularly the battery will slowly drain and the alternator in your car wont be able to recharge it since it isnt operated frequently enough.
