XS Power A3400 12V AGM Retro Series Battery with M6 Terminal Bolts, Max 3300Amps

The A3400 is a 12V deep cycle AGM battery in a BCI Group 34 case with a classic retro appearance, built to start the engine and run the electrical system in a restored or period-correct build. Low internal resistance lets it deliver 1,150 cranking amps and 1,012 cold cranking amps, so a high-compression or big-displacement engine turns over in extreme heat or cold. Peak output reaches 3,300 amps. Capacity is where it earns its place in a modified build: 80Ah and 160 minutes of reserve capacity mean the battery keeps feeding accessories long after the engine stops. Absorbent Glass Mat construction handles repeated deep cycling, so extra lighting, a power inverter, a winch, an audio system, or aftermarket electronics can all run off it. As the main battery it supports an audio system up to 2,500W. Used as a secondary battery, it opens up 4,000W of capacity for a larger system. The sealed case is spill-proof and resistant to moisture and vibration, so it can be mounted where a flooded battery cannot go, including a trunk, an interior amp rack, or a tightly packed engine bay. It ships with 580 top terminals and M6 terminal hardware, covering both common cable ends without extra adapters, and carries a three year warranty.