Q: Battery Voltage

[kevinj93]

There are diferent types of lead acid batteries.

The type you normally find in a car is designed to supply very high current for a short length of time to start the engine, then be recharged and kept nearly full.

The other type normally found is a Deep Cycle battery, which is designed to be repeatedly discharged and recharged, but is not designed to provide the high current neded to start a car.

Many 4 wheel drive owners who go camping wil have 2 batteries installed in their vehicle. One will be a normal starting battery, and the other will be a deep cycle battery. There will also be an isolator to separate the two batteries when the engine is not running, but provide for charging both from the car alternator.

All the power for their camping equipment comes from the deep cycle battery, with no worries about not being able to start the vehicle later.

It might be a tight squeeze to fit a second battery in a Yaris....