Amp Hours (AH)
This quantifies the amount of current (amps) a battery can deliver over a length of time.

Cold Cranking Amps (CCA)
This defines the capacity of a battery by quantifying the maximum number of amps a battery can deliver for 30 seconds at 0° F(-17.8° C).

Cold Cranking Amps (CCA)
This defines the capacity of a battery by quantifying the maximum number of amps a battery can deliver for 30 seconds at 0° F(-17.8° C).

C Rating
The C rating of a battery quantifies the total the amount of current (amps) that can be delivered over a length of time.

Starting Batteries rated in (CCA)
Starting Batteries are designed for deliver high current loads over short periods of time and are not designed to be cycled. While not recommended for running loads, they can work if you size the load properly. Sizing loads will be explained later in terms of the C rating. To get a ballpark idea of the C20 rating of a battery, divide the CCA by 20. Example: A 1000CCA battery is roughly equivalent to at 50Ah battery.

C Rating
The C rating of a battery is the power capacity of a battery. Typically this is followed by a number (C100, C20, C10 or C5) indicating the number of hours this power must be spread across.
A C20 rating of 10AH indicates that 10AH's can be delivered over 20 hours. A common misconception is that the battery could deliver 10Amps for 20 hours; this is very wrong!
You must divide the C20 rating by the number of hours of the rating:
&tab;10Amp Hours (the C20 rating) / 20 Hours = .5Amps

Coming Soon!