Fullriver DC400-6 6V Deep Cycle AGM Battery.
Why You'll Love The Fullriver DC400-6
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Real storage capacity for your system. At 415Ah on the 20-hour rate — and 460Ah at C100 — the Fullriver DC400-6 gives you a serious bank of usable energy, so your lights, fridge and essentials carry through the night and beyond.
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Zero maintenance, ever. Sealed AGM construction means no watering, no topping up acid and no checking cells, so you wire it in once and get on with your life.
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Safe to live alongside. It's spill-proof, non-hazardous and can be mounted in any direction except inverted, letting you put your bank where it suits your space rather than where the battery dictates.
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Built to be drained and refilled, hundreds of times. Heavier plates and more lead than a starting battery mean it's engineered for the daily deep cycling an off-grid or solar bank actually demands.
Your life, with the Fullriver DC400-6
There's a version of battery ownership nobody misses once it's gone. Topping up cells with distilled water. Checking each one. Worrying about acid fumes and spills in a space you actually live in.
The Fullriver DC400-6 leaves all of that behind. It's a fully sealed AGM battery, so once it's wired into your bank, the maintenance is done. No watering, no mess, no ongoing jobs on the list.
What you get instead is quiet, dependable storage. Your panels fill it through the day, and it carries your home, cabin or rig through the evening — day after day, season after season.
The build is where the difference really shows.
Fullriver uses jar-formed, high-density plates that go through a 10-day curing process, bonded to heavy-duty lead, calcium and tin grids. That's the kind of construction that delivers true deep-cycle life rather than starting-battery performance. A compressed, micro-porous glass mat separator keeps the electrolyte in firm contact with the plates, which also makes the DC400-6 highly resistant to shock and vibration — worth a lot if it's living in an RV or a boat.
The fire-retardant ABS case, cover resins and epoxy seals combine into a genuinely sealed, non-hazardous battery, approved by DOT, IATA, ICAO and IMDG for transport by land, sea and air.
The Fullriver DC400-6 in a nutshell:
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415Ah at C20 (460Ah at C100) — substantial usable storage for solar, RV, marine and backup banks.
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Sealed, maintenance-free AGM — no watering or acid checks for the life of the battery.
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L16 group size with DTW terminals — a standard footprint that drops neatly into most established battery bank layouts.
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1500 CCA and a shock-resistant build — strong current delivery that stands up to rough, mobile installations.
Fullriver DC400-6 specifications
Nominal Voltage
6V
Capacity
- C100: 460 Ah
- C20: 415 Ah
- C10: 374 Ah
- C5: 340 Ah
- C3: 282 Ah
- C2: 246 Ah
- C1: 232 Ah
CCA (Cold Cranking Amps)
1500 Amps
CA / MCA
1800 Amps
PHCA
2000 Amps
Internal Resistance
1.6 mΩ
Chemistry
Sealed AGM — maintenance-free and non-spillable
Group Size
L16
Terminal Type
DTW
Height (with terminal)
16.69 in / 424 mm
Height (case only)
15.9 in / 404 mm
Width
7.05 in / 179 mm
Length
11.61 in / 295 mm
Weight
123.2 lbs / 56 kg
Case Type
ABS plastic, fire-retardant
Transport Approvals
DOT, IATA, ICAO and IMDG approved for land, sea and air
Let the experts help you find your perfect deep cycle battery
Not sure how many Fullriver DC400-6 batteries you need, or how to wire them for a 12V, 24V or 48V bank? We're here to help you size it properly the first time.
Chat via Email — support@kratopower.com
Chat on the Phone — +1 (888) 855-7286
Fullriver DC400-6 documents and materials
Disclaimer: The information on this page is provided for general guidance only and should not be taken as professional, electrical or medical advice. The Fullriver DC400-6 is a heavy sealed lead-acid battery (123.2 lbs) and should be lifted, installed, wired and charged strictly in line with the manufacturer's instructions and your local codes. Use the correct charger settings and wiring for your bank, and consult a qualified electrician if you are unsure. Every situation is different, so if you have any doubt, please seek professional guidance before purchasing or installing. Products are used at your own risk.
