Angilaroy45

I did. There are XS Power AGM & Lithium Car Audio Batteries. I have been using XS batteries past few years purchased from local auto parts store and My experience is that XS Power batteries also have extremely low internal resistance, so they can be discharged more deeply and recharge faster. These batteries are also able to withstand the high levels of vibration that are routine in racing and audio competitions. Lithium batteries are also best in service. More surface area means MORE POWER! AGM (Absorbed Glass Mat) design means longer life, vibration resistant, deep cycle and can be mounted in any position (except upside down)