If you are in the market for a Deep Cycle AGM Battery for your 4WD or Trailer then you can not go past Kickass AGM.
These batteries are the real deal and don't just take our word for it, take a look at the massive 26 Month Warranty.
Battery Box for AGM deep cycle dual batteries. Standard 270mm L x 180mm W x 195mm H....
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Whats the Difference between a Car Battery & a Deep Cycle Battery?
A car's battery is designed to provide a very large amount of current for a short period of time. This surge of current is needed to turn the engine over during starting. Once the engine starts, the alternator provides all the power that the car needs, so a car battery may go through its entire life without ever being drained more than 20 percent of its total capacity. Used in this way, a car battery can last a number of years. To achieve a large amount of current, a car battery uses thin plates in order to increase its surface area.
A deep cycle battery is designed to provide a steady amount of current over a long period of time. A deep cycle battery can provide a surge when needed, but nothing like the surge a car battery can. A deep cycle battery is also designed to be deeply discharged over and over again (something that would ruin a car battery very quickly). To accomplish this, a deep cycle battery uses thicker plates.