Unlike a regular battery which simply supplies a large current to turn the starter motor, a stop-start battery has enhanced cyclic performance which has the ability to discharge and recharge many times. This means that even when the engine is in the off/idle position, the battery continues to power the ancillary systems such as lights, air conditioning and in-car entertainment. Many cars also have brake regeneration systems, so any energy created when the brakes are applied is also stored in the battery for later use.
Vehicles with this technology require a battery that is compatible and able to cover these robust functions. If a standard battery is fitted it will fail prematurely. There are two types of stop-start battery depending on your vehicle and its features.
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