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Fullriver HC18 - (PC625) HC Series 12V 18Ah Advanced AGM
Fullriver HC18 - (PC625) HC Series 12V 18Ah Advanced AGM
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Technical Specifications
| Specification | Details |
|---|---|
| Model | HC18 (PC625) |
| Voltage | 12V |
| Capacity / Cranking | 625 PHCA | 265 CCA | 18 Ah (@ C20 rate) |
| Reserve Capacity (RC) | 26 minutes @ 25A |
| BCI Group Size | B16CL-B |
| Weight | 7.00 kg |
| Terminal Type | M6 Brass Terminals |
The Fullriver HC18 Advanced AGM Battery is a premium, ultra-compact dual-purpose power cell engineered to thrive in elite Australian motorsports, extreme powersports, and custom vehicle builds. Replacing traditional, high-maintenance wet starting options, this low-resistance powerhouse packs an exceptional punch—delivering 625 Peak Hibernation Cranking Amps to swiftly ignite high-performance engines while maintaining true deep-cycling longevity. Cloaked in Fullriver's sleek, modern black casing, the non-spillable HC18 ensures maximum electrical conductivity, rapid charge efficiency, and total mounting flexibility for tight spaces or weight-minimised custom layouts.
Perfect for drivers who demand:
- ✓ High-current engine starting power optimised for high-performance motorsports and low-temperature cranking
- ✓ Extreme vibration armour built tough to survive track corrugations, rally racing, and heavy kinetic shock loads
- ✓ A low-profile, space-saving design that can be safely mounted in almost any physical orientation under-bonnet or inside the cabin
Key Features & Benefits
Dual-Purpose Cranking & Cycle Life
- • Fires a sudden, massive 625 peak cranking amps for immediate engine ignition under extreme strain
- • Heavy-duty, extra-thick grids deliver true cyclic stamina up to 1000 full life cycles at 50% DOD
- • Specially formulated proprietary active paste ensures exceptional recovery characteristics from deep discharges
Sealed Maintenance-Free Cover
- • Non-spillable and leak-proof AGM structure allows for safe installation in almost any physical orientation
- • DOT, IATA, IMDG, and ICAO certified as non-hazardous, enabling fuss-free indoor or enclosed transit
- • Advanced internal recombination avoids premature liquid evaporation, completely removing manual top-up needs
Electrical Stability & Conductivity
- • Solid brass terminals provide superior conductivity and maximum low-resistance current transmission
- • Highly porous micro-porous glass fibre separators guarantee significantly faster recharge acceptance
- • Long standby shelf life with an incredibly low self-discharge rate of less than 1% per month at 20°C
Advanced Safety Systems
- • Special lead-calcium alloy grid plates protect internal cells against elevated engine-bay temperatures
- • Self-regulating pressure relief valves safely manage internal pressure variances during heavy usage
- • Corrosion-resistant, rugged casing layout absorbs continuous kinetic road shock to protect vital components
Advantages & Considerations
Advantages
- ✓ Hybrid architecture serves perfectly as a powerful starter and robust accessory battery
- ✓ Safe, corrosion-free design is ideal for cockpit or trunk installations in custom motorsports
- ✓ Dependable 26-minute reserve capacity delivers a reliable power buffer against alternator drops
- ✓ Low-profile sizing seamlessly resolves extremely limited spacing constraints and weight boundaries
Considerations
- • Ultra-compact 18 Ah capacity is fine-tuned for starting weight reduction, not large caravan living setups
- • Integrated M6 threaded posts may require terminal adaptors to hook up standard tapered factory clamps
- • Dense commercial-grade internal lead plates result in a solid 7.00 kg weight density for its small size
Frequently Asked Questions
What is the lifespan of this battery?
The Fullriver HC18 is designed to outlast conventional wet-starting alternatives by combining high cranking current with genuine cyclic characteristics. Subject to proper multi-stage auxiliary charging routines and regular enthusiast use, it provides exceptional longevity and handles up to 1000 discharge cycles at 50% DOD.
Is this battery maintenance-free?
Yes, this battery features a completely Sealed Maintenance-Free (SMF) absorbed glass mat construction. Internal recombination prevents gas and liquid evaporation, meaning it will never leak, require water top-ups, or cause terminal corrosion.
What vehicles/applications is this battery compatible with?
The HC18 is highly optimised as a high-performance starting option for motorsports, racing vehicles, rally cars, classic vehicles, powersports, watercraft, and modified four-wheel drives (4WD) that require high power output, low internal resistance, and heavy-duty vibration protection.
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. Thanks to its advanced ultra-low self-discharge layout, the HC18 loses less than 1% of its charge per month on standby. For best results, ensure it is fully charged before storage, and connect an AGM-compatible smart charger during extended downtime.
What is covered under the warranty?
The local warranty covers early structural, component, or operational failures arising directly from internal manufacturing errors or material defaults. It provides dependable, customer-centric protection when the product is used within regular guidelines in its intended performance, starting and auxiliary workloads.
Battery Compatibility Guide
Direct Replacement Models

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