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How A Battery Works

How an ODYSSEY® Battery Works

A battery harnesses energy that is stored in chemical form and then converted into electrical power when released. This electrical power is needed in order for the ignition to start the engine when cranked. A car's battery may also power the lights and other accessories. As well as serving as a failsafe to power the vehicle's entire electrical system for a short period of time, should the alternator or fan belt fail.

Three things to consider when buying a battery

  1. SIZE: What are the dimensions of your original equipment battery?
    The Battery Council International (BCI) uses a two or three digit number to identify the height, length, width, and shape of original equipment sizes.
  2. POWER: What are the Cold Cranking Amp (CCA) requirements of your vehicle?
    The power a battery can deliver decreases as the temperature gets colder. Batteries are rated at 0 degrees F. Using this rating for comparison, the higher the number, the greater the starting power of the battery.
  3. WARRANTY: What is the warranty of the battery?
    Automotive batteries are typically backed by limited warranties. These warranties generally include both free replacement and proration periods. You should look for warranties with the longest free replacement period.

As the temperature drops, more cranking power is required to start a vehicle's engine, but a battery's available power decreases.