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FULLRIVER

FULLRIVER HC SERIES 12V 55AH 620CCA

FULLRIVER HC SERIES 12V 55AH 620CCA

SKU:HC55

Regular price $342.00
Regular price $380.00 Sale price $342.00
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Fullriver HC55 AGM Battery

High-Cranking Power for Extreme Performance Vehicles

🏁 Supercars Championship Battery of Choice

The Fullriver Batteries HC Series is engineered to meet the rising electrical demands of modern vehicles. With high-compression cells, pure lead grids, and thin plate technology, the HC55 delivers reliable starting power even under extreme conditions.

Built tough. Engineered for performance. Designed to last.


🔥 Superior Engine Starting Performance

The HC55 is specifically designed for engines that require high current discharge and excellent cold-cranking performance:

  • Nominal Voltage: 12V
  • Capacity (C20): 55Ah
  • Capacity (C5): 47.5Ah
  • CCA: 620A (Cold Cranking Amps)
  • CA / MCA: 745A (Cranking Amps / Marine Cranking Amps)
  • HCA: 890A (Hot Cranking Amps)
  • PHCA: 1300A (Pulse Hot Cranking Amps)
  • Short Circuit Current: 1729A
  • Internal Resistance: 7.2mΩ

Low-resistance design ensures instant energy transfer and reliable ignition under extreme conditions.


🛡 Advanced AGM Design

Non-spillable & maintenance-free – safe in all orientations
Corrosion-resistant – protects terminals and connections
Flame-resistant ABS case (UL94-HB)
Safe for motorsports & extreme-use vehicles
Low self-discharge – retains charge over time

Perfect for high-performance cars, racing vehicles, powersports, off-road, and marine applications.


🏁 Built to Withstand Shock & Vibration

High-compression internal cells for durability
Heavy-duty reinforced casing
Resilient against vibration, shock, and harsh environments
Engineered for consistent high-current output

Ideal for vehicles where reliable starting power is critical.


📊 HC55 Technical Specifications

Electrical Specs

Specification Value
Nominal Voltage 12V
Capacity (C20) 55Ah
Capacity (C5) 47.5Ah
CCA 620A
CA / MCA 745A
HCA 890A
PHCA 1300A
Short Circuit Current 1729A
Internal Resistance 7.2mΩ
Self-Discharge @25°C ≤3% per month
Reserve Capacity @25A 100 Min
Reserve Capacity @75A 17 Min

Physical Specs

Specification Measurement
Group Size 51
Terminal Type M6 Button Terminal
Terminal Torque 5.6–7.9 N·m
Length 138mm
Width 229mm
Height (case) 208mm
Height (w/ terminal) 212mm
Weight 18.0kg (39.68lbs)
Case Type ABS Plastic – Flame Resistant (UL94-HB)

Operating & Charging

Operating Temp: -20°C to +50°C
Maintain ≥60% charge below 0°C
Maximum Charge Current: 25% of C20
Absorption Voltage: 14.4–14.7V
Float Voltage: 13.5–13.8V

Proper charging ensures long life and consistent performance.


🚗 Ideal Applications

  • High-performance street vehicles
  • Racing & motorsports vehicles
  • 4WD & off-road vehicles
  • Marine engine starting
  • Powersports & extreme-use vehicles

💪 Why Choose Fullriver HC55?

⚡ Elite cold-cranking power
🛡 Maintenance-free, sealed AGM design
🏁 Shock & vibration resistant
🔋 Ultra-low internal resistance for instant start
🔥 Durable, flame-resistant casing
🌍 Trusted global brand reputation


🏆 Unmatched Starting Power. Built to Last.

For performance vehicles that demand maximum cranking power and reliability, the Fullriver HC55 AGM Battery is the premium choice for starting power you can trust.

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