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DC40-12 Fullriver Deep Cycle AGM Battery (12V 40AH)
DC40-12 Fullriver Deep Cycle AGM Battery (12V 40AH)
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Technical Specifications
| Specification | Details |
|---|---|
| Model | DC40-12 |
| Voltage | 12V |
| Capacity | 275 CCA | 40 Ah (at C20 rate) |
| Dimensions (LWH) | 198 x 166 x 174 mm (Total Height: 174 mm) |
| Weight | 13.40 kg |
| Terminal Type | M6 Threaded |
The Fullriver DC40-12 Deep Cycle AGM Battery is a premium, compact power storage cell engineered to provide superior performance and cyclic durability for demanding Australian applications. Moving well beyond standard automotive starting variants, this heavy-duty Absorbed Glass Mat (AGM) battery incorporates significantly more lead, thicker full-frame plates, and a proprietary high-density active paste to deliver sustained power across multiple life cycles. Designed for harsh environments, the completely sealed, non-hazardous configuration delivers the performance of a true deep-cycle battery with the daily convenience of maintenance-free operation.
Perfect for drivers and operators who demand:
- ✓ A space-optimised auxiliary power supply for recreational vehicles, camper trailers, and light marine house banks
- ✓ Absolute safety and non-spillable cleanliness for medical mobility devices and compact floor machinery
- ✓ A low-maintenance, ultra-reliable storage option for small-scale solar arrays and vital telecommunication backups
Key Features & Benefits
Platelock™ Vibration Armour
- • Thick, full-frame internal plates securely lock active materials to survive continuous movement
- • High-purity lead-calcium-alloy grids drastically minimise internal corrosion and plate degradation
- • Engineered tough to absorb continuous shocks from corrugated regional roads and industrial worksites
Sealed Maintenance-Free Cover
- • Liquid electrolyte acid is fully immobilised within highly porous absorbent glass-mat separators
- • Advanced gas recombination closed-loop system entirely eliminates internal fluid evaporation
- • True "install and forget" architecture avoids any need for manual water top-ups or acid checks
Electrical Stability
- • Proprietary high-density active paste maximises runtime output and maintains capacity thresholds
- • Unique low-resistance microporous separators ensure a significantly faster recharge acceptance rate
- • Low self-discharge rate of only 2% per month at 20°C ensures exceptional off-season storage health
Advanced Safety Systems
- • Self-regulating pressure relief valves safely vent pressure variances during rapid recharges
- • Completely leak-proof and spill-proof profile allows for versatile installation in closed cabins
- • Highly rugged outer shell provides extreme impact protection and defends against external ignition risks
Advantages & Considerations
Advantages
- ✓ Comprehensive local warranty coverage tailored for Australian consumer assurance
- ✓ Highly manageable 13.40 kg structural layout allows for simplified installation
- ✓ Clean, non-hazardous profile is ideal for indoor mobility equipment and closed spaces
- ✓ Solid M6 threaded terminals promote excellent low-resistance wiring connection safety
Considerations
- • Compact 40 Ah capacity is optimised for light-to-medium cyclic loads, not heavy industrial demands
- • Dedicated deep-cycle build profile; not intended for standard under-bonnet automotive cranking paths
- • Not engineered to match the rapid, high-cycle start demands of modern Idle Stop-Start vehicle setups
Frequently Asked Questions
What is the lifespan of this battery?
Fullriver deep-cycle AGM batteries are built to handle hundreds of deep-discharge and recharge cycles. The overall service life depends directly on operational routines, multi-stage charging accuracy, and average depth of discharge, and it vastly outlasts standard lead-acid cells under cyclic use.
Is this battery maintenance-free?
Yes, this model features a completely Sealed Maintenance-Free (SMF) architecture. Because the internal acid is fully absorbed within advanced absorbent glass-mat separators, there is zero risk of spillage and no requirement to ever check or top up internal fluid levels.
What vehicles/applications is this battery compatible with?
The DC40-12 is highly optimised for auxiliary power supply demands and cyclic workloads rather than vehicle engine starting. It is the preferred option for compact caravan or RV setups, renewable solar systems, medical mobility equipment, utility carts, aerial work platforms, and small floor machines.
How should I store this battery during the off-season?
Store the battery in a cool, dry location, out of direct exposure to extreme temperatures. Due to its exceptionally low self-discharge rate of 2% per month at 20°C, it remains stable over extended standby intervals. Always charge the unit up completely before storing, and use a smart maintenance charger periodically.
What is covered under the warranty?
This product includes local warranty coverage. It protects against early operational failures caused directly by internal material defects or structural assembly errors under standard operating conditions, ensuring secure protection of your technical investment.
Battery Compatibility Guide
Direct Replacement Models

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