D3400R XS Power 12VDC AGM Car Audio Vehicle Battery 3300A 65Ah Group 34R

If you are searching for a "Group 34R AGM upgrade" or a "high-output 12V battery for 2500W–4000W systems," the XS Power D3400R is the street-standard benchmark for reversed-polarity installations. This is the BCI Group 34R workhorse — 3300A maximum current, 65Ah (C20) capacity, and a 135-minute reserve at 25A discharge — engineered for the engine bays of Chrysler, Jeep, Dodge, and other vehicles requiring a Right polarity (R) configuration. The D3400R replaces an OEM flooded Group 34R without requiring custom cable extensions, re-routed hold-downs, or tray modifications.

The Group 34R Technical Floor

Standard Group 34R flooded batteries are designed for basic ignition, not for the massive current draw of 4000W peak-musical transients. The D3400R provides the necessary headroom to protect your investment. 900 Cold Cranking Amps (0°F) and 1000 Cranking Amps (32°F) ensure reliable starts in any climate, but the real power lies in the 65Ah (C20) capacity and the 135-minute reserve. This reservoir prevents the catastrophic voltage sag that often accompanies long bass-note sustains, shielding your amplifier rack and lighting system from the instability of a stock electrical bus.

The 2500W / 4000W Dual-Disclosure

The D3400R power rating is disclosed in two brackets: 2500W as a primary source and 4000W as a secondary source. The primary rating reflects the continuous musical load the battery can support as the sole power source — a critical number for 2500W daily drivers. The secondary rating indicates performance in a charging-active setup, where the battery works alongside a high-output alternator to absorb the high-speed transients of a 4000W amplifier rack. A 2500W RMS system can treat the D3400R as a complete single-battery solution, while 4000W builds should treat it as the primary anchor in a multi-battery configuration.

Fitment: Group 34R, Right Polarity, OEM Compatibility

The D3400R adheres strictly to the BCI Group 34R envelope (10.24"L × 6.75"W × 7.20"H) with a Right polarity (R) post orientation. This configuration — where the positive terminal is on the right side when the label is facing you — is a requirement for many modern domestic vehicles. This mirrored layout ensures that factory positive and negative cable runs remain aligned, preventing the need for risky post-terminal extensions. Before ordering, confirm your vehicle's factory battery is a Group 34 and that the positive post sits on the right-hand side.

Who Should Use the D3400R

The D3400R is purpose-built for daily drivers running 2500W–4000W RMS audio systems who require a high-output 12V upgrade with Right polarity fitment. It is the correct specification for builds in Chrysler, Jeep, and Dodge vehicles that demand OEM-compatible placement with competition-level current delivery. For higher-current SPL builds or 16V architectures, consider the Titan8 or D1600 series. Sparked Builds provides the documented spec sheets and fitment verification to ensure your 12V upgrade is anchored correctly. Build it at Sparked Builds.

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