HEAVY DUTY TRUCK PROGRAM

one agm.
one superbank.
zero issues.

Your heavy duty came with two batteries because you need the power. Replace the pair with an XS Power D-Series AGM and a 500 Farad SuperBANK ultracapacitor and you get instant cranking amps, stable voltage under load, and one battery that actually holds a charge — instead of two lead-acid units that age faster and are less powerful.

Long-lasting Durability & Maximum Comfort.

AGM FOR RESERVE.
SUPERBANK FOR start.

A factory dual-battery diesel is really solving two different problems with the same part: a huge amperage spike for the starter and glow plugs, and enough reserve capacity to run electronics, upfits and plow gear. A lead-acid pair splits the difference badly. Pairing a D-Series AGM with a 500F SuperBANK puts the right technology on each job — and the SuperBANK recharges in seconds, so every restart hits just as hard as the first one.

Cold starts, solved

The ultracap dumps current the instant the key turns, so voltage doesn't sag below what the ECM and glow system want to see at 10°F.

No mismatched pair

Two aging lead-acid batteries fight each other. One AGM carries the reserve alone, and the SuperBANK never draws it down.

Direct fit, factory trays

Both units are BCI group-sized to your truck's OE boxes. Stock hold-downs, stock cables, no fabrication.

Easier on the truck

Stable voltage means longer life for starters, relays, alternators and control modules — the expensive parts.
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AGM + SuperBANK start to finish

Watch the full swap on a factory dual-battery truck: what comes out, how the SuperBANK lands in the second tray, terminal and cable routing, and what the voltage does on a cold crank before and after.

Removing the OE pair and prepping the trays

Terminal selection — 580 vs 551 posts

Parallel wiring and first charge

Cold crank voltage, back to back

direct fit by platform

  • FORD SUPERDUTY

  • SILVERADO / SIERRA HD

  • RAM HEAVYDUTY

FORD

F-250 · F-350 · F-450

1994–current Powerstroke. Every Super Duty platform runs the same Group 65 combo — a D6500 AGM alongside an SB500-65 SuperBANK with 580 short SAE posts.

Model Years Engine Platform Combo Kit  
1994–1997 7.3L Powerstroke D6500 + SB500-65 + 2× 580 Shop Kit →
1999–2003 7.3L Powerstroke D6500 + SB500-65 + 2× 580 Shop Kit →
2003–2007 6.0L Powerstroke D6500 + SB500-65 + 2× 580 Shop Kit →
2008–2010 6.4L Powerstroke D6500 + SB500-65 + 2× 580 Shop Kit →
2011–Current 6.7L Powerstroke D6500 + SB500-65 + 2× 580 Shop Kit →

CHEVROLET & GMC

Silverado & Sierra 2500HD · 3500HD

Detroit Diesel and Duramax trucks split into two fitments: Group 34 for 1990–2007, Group 48 from the LMM forward.

Model Years Engine Platform Combo Kit  
1990–2000 6.2L / 6.5L Detroit Diesel D3400 + SB500-34 + 2× 551 Shop Kit →
2001–2007 6.6L Duramax (LB7, LLY, LBZ) D3400 + SB500-34 + 2× 551 Shop Kit →
2007.5–2010 6.6L Duramax (LMM) D4800 + SB500-48 + 2× 580 Shop Kit →
2011–2019 6.6L Duramax (LML, early L5P) D4800 + SB500-48 + 2× 580 Shop Kit →
2020–Current 6.6L Duramax (L5P) D4800 + SB500-48 + 2× 580 Shop Kit →

DODGE & RAM

Ram 2500 · 3500 Cummins

Three fitments across 35 years of Cummins. 2nd Gen trucks can step up to the 1000 Farad SuperBANK in the same Group 27 footprint.

Model Years Engine Platform Combo Kit  
1990–1993 5.9L Cummins (D/W Series) D3400 + SB500-34 + 2× 551 Shop Kit →
1994–2002 5.9L Cummins (2nd Gen) D2700 + SB500-27 + 2× 580
or D2700 + SB1000-27 + 2× 580 		Shop Kit →
2003–2009 5.9L & 6.7L Cummins (3rd Gen) D4800 + SB500-48 + 2× 580 Shop Kit →
2010–Current 6.7L Cummins (4th & 5th Gen) D4800 + SB500-48 + 2× 580 Shop Kit →

WHATS IN THE KIT

D-Series AGM

99.99% pure lead AGM. Spill-proof, vibration tolerant, and sized to your factory group. Up to 1,100 cranking amps and 174 minutes of reserve.

SB500 SUPERBANK

500 Farads, 4,000W of surge, 11 lbs. Recharges in seconds and shrugs off extreme heat and cold. Rated past a million cycles.

TERMINAL ADAPTORS

Two per kit so the OE cables land exactly where they did before — 580 short SAE posts, or 551 marine tops where the platform calls for it.

common questions

Do I lose reserve capacity going from two batteries to one?

Not in practice. Factory pairs are chosen for cranking amps, not storage. A D-Series AGM carries the reserve on its own, and the SuperBANK handles the amperage spike the second battery used to cover.

Does the SuperBANK need a special charger or isolator?

No. It wires in parallel with the AGM on the factory cables and charges off the truck's alternator like any second battery.

Will it fit under the stock hold-downs?

Yes. Every kit on this page is matched to the BCI group size of that truck's factory boxes, so the AGM and the SuperBANK both drop into the OE trays.

What about plows, upfits and winches?

That's exactly the load this setup is built for. The ultracap absorbs the inrush every time the plow angles or the winch loads up, so system voltage stays flat instead of dipping into the dash.

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