Deka AUX14 Automotive AGM Auxiliary Battery (200 CCA)

Deka built the AUX14 as a sealed AGM auxiliary battery for modern vehicles that rely on secondary battery power, particularly those with start-stop technology, advanced electronics, or backup power systems that need a small, reliable battery tucked away from the main engine bay unit. At 200 CCA and 12 amp hours in a Group 400 form factor, it packs enough capacity for auxiliary loads without taking up much space.

The AGM construction means the electrolyte is absorbed into fiberglass mats rather than sloshing around as free liquid. That makes the battery spill-proof and allows it to be mounted in positions and locations where a flooded battery would not be practical. There is no vent tube required, no acid to top off, and no terminal corrosion from escaping fumes. The reinforced case and cover are built to handle vibration, which matters for a battery that might be mounted under a seat, in a trunk, or in another location that sees more road impact than a traditional battery tray. Dimensions are 5.875 x 3.438 x 5.750 inches with a top-post terminal and left-positive polarity, so verify your mounting space and cable routing before ordering.

Deka backs the AUX14 with a 12-month free replacement warranty. At 11.5 pounds, it is manageable to install without a second pair of hands.