(For example, RC would be the number of minutes that a 12-volt battery could maintain a voltage of 10.5 volts.) back to top. ANSWER 9: Extreme heat causes the corrosion and chemical processes inside the battery to accelerate.
http://www.genesisny.net/GGolf/BatteryAuto.html
The higher the minute rating, the greater the battery's ability to run lights, pumps, inverters, and electronics for a longer period before recharging is necessary. The 25 Amp. Reserve Capacity Rating is more realistic than Amp-Hour or CCA as a measurement of capacity for deep cycle service.
http://www.dcbattery.com/faq.html
Reserve capacity is the time in minutes that a new, fully charged battery will deliver 25 amperes at 80 degrees F and maintain a terminal voltage equal to, or greater than, 1.75 volts per cell.
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(CCA) is the maximum amperes that can be continuously removed from a battery for 30 seconds at 0F before its voltage drops to unusable levels. A 550 CCA battery can supply 550 amperes for 30 seconds at 0F. This rating is only useful in the selection of engine starting batteries. NOTE: Do not confuse Cold Cranking Amperage (CCA) with Marine Cranking Amperage (MCA) or Cranking Amperage (CA). MCA and CA is a higher battery rating measured at warmer temperatures.
http://www.dcbattery.com/faq.html
It is the Cold Cranking Amps – or CCA – that is the important number here. CCA is the number to use in your comparisons. Now with all this talk of cold temperatures, it’s important to note that heat is the real enemy of long battery life.
http://knowhow.napaonline.com/car-battery-know-how-cold-cranking-amps-and-reserve-capacity/
ANSWER 1: We carry a line of sealed, maintenance-free batteries for cars, trucks and deep-cycle applications. However, most of the automotive batteries that Interstate currently offers are referred to as low-maintenance, which means that under normal operating conditions, the battery will require minimal maintenance.
http://www.genesisny.net/GGolf/BatteryAuto.html
What are CA's (cranking amps) & CCA's (Cold Cranking Amps)? Cranking amps are the numbers of amperes a lead-acid battery at 32 degrees F (0 degrees C) can deliver for 30 seconds and maintain at least 1.2 volts per cell (7.2 volts for a 12 volt battery). In other words, CA/cranking amps determine how much power you have to start your car in most climates.
http://www.gnbsystems.com/faq.php
Car Battery Know How: Cold Cranking Amps and Reserve Capacity. A car battery wears out just like any other battery and needs to be replaced. There are a couple of things you should understand when looking for a new car battery: one is cold cranking amps and the other is reserve capacity. Let’s start with cold cranking amps. This can be thought of as the power output used to start a cold engine.
http://knowhow.napaonline.com/car-battery-know-how-cold-cranking-amps-and-reserve-capacity/
Batteries come in many different group sizes. A battery's group size simply determines it's length, width, height, and terminal configuration; this has nothing to do with a battery's capacity. Regardless of the group size, two batteries are equal in power if the CCA ratings are the same.
http://www.gnbsystems.com/faq.php
The most common battery rating is the AMP-HOUR RATING. This is a unit of measurement for battery capacity, obtained by multiplying a current flow in amperes by the time in hours of discharge. (Example: A battery which delivers 5 amperes for 20 hours delivers 5 amperes times 20 hours, or 100 ampere-hours.)
http://www.dcbattery.com/faq.html
what does cca rating on a car battery mean
Cold Cranking Amps is the maximum amperes that can be continuously removed from a battery for 30 seconds at 0F before its voltage drops to unusable levels. In a car, Cold Cranking Amps is the maximum amperes that can be continuously removed from a battery for 30 seconds at 0 degrees Fahrenheit before its voltage drops to unusable levels.