A Hybrid Battery is part of a Hybrid System, on a Hybrid Vehicle, that works in sync with the Gas Engine, to increase Miles per Gallon (MPGs). A Hybrid Battery is High Voltage, Large in Size, and has the ability to Propel the car or truck by itself. A Hybrid Battery is usually hidden under, or behind the back seat. They are recharged by the Inverter of the hybrid vehicle, which runs off of the gas engine, and generates electricity. The Hybrid Battery is also recharged by the car’s regenerative brakes (while braking), and the transmission (while in Coasting mode). When charged, the Hybrid Battery can Substitute for the vehicle’s gas engine, especially at times of bad gas efficiency (idling, starting out, heavy traffic, etc).
A Hybrid Vehicle also utilizes a 12-Volt, or Auxiliary Battery, like all cars and trucks do.