About Concorde / Sun Xtender

Concorde’s proprietary, maintenance-free, valve-regulated, lead acid deep cycle batteries employ non-spillable absorbed glass mat (AGM) technology. Immobilized electrolyte and thick lead calcium plates are compressed within a micro-fibrous silica glass mat envelope which provides excellent electrolyte absorption and retention with greater contact surface to plates compared to gelled batteries. This results in higher capacity ratings and cyclic performance.

Concorde Sun Xtender batteries have a lower self-discharge rate——five times better than flooded batteries. Expected life cycles are 5000 cycles to 10% DOD, 1000 cycles to 50% DOD. UL listed as a recognized system component. They meet DOT transportation requirements and are not restricted for shipment because they are exempted from hazardous materials category. All have copper alloy terminals and silicon bronze bolts. One year warranty on all concorde batteries.

Made in the USA

All Concorde products are made at one facility in West Covina, California. Concorde is a family owned and operated company. From start to finish all products are made in the United States.