XS Power Deep cycle 12-volt battery (reversed polarity)

Give your vehicle the necessary juice to perform at its best. XS Power deep cycle batteries can act as replacements for your car's standard battery, or you can use them as auxiliaries to power your high-performance sound system reliably. With more overall titles and records than all of the other battery and power-cell companies combined, XS Power dominates the car audio competition SPL and SQL judging lanes. If you've got a boat or an RV, XS Power's got a solution for your electric needs, too. XS Power's deep cycle batteries feature a sealed absorbed glass mat (AGM) design which incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design. This leak-proof, non-hazardous configuration typically lasts longer than normal replacement batteries if properly charged. These batteries actually store energy, so you don't have to add a capacitor to your system to get a quick burst when you need it. Since there are no external vents on ...