12V 8Ah 100CCA High Crank AGM Battery (HC8)

⚡ FULLRIVER HC8 12V 8AH HIGH CRANK AGM BATTERY

100CCA High-Performance Starting Battery – BTX9-BS Size, M6 Terminals & AGM Construction

🔥 Compact size. Serious cranking power. Reliable engine-starting performance when it matters.

The Fullriver HC8 is a purpose-built 12V 8Ah High Crank AGM battery engineered for applications requiring strong, reliable starting current from a compact battery.

Delivering 100CCA, 155A CA / MCA, 200A HCA and an impressive 310A pulse hot-cranking output, the HC8 is designed for motorcycles, ATVs, dirt bikes, jet skis, powersports vehicles and other compatible small-engine applications.

With sealed AGM construction, low internal resistance, low self-discharge and a durable flame-resistant ABS case, the HC8 delivers dependable starting performance without routine fluid maintenance.

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⚡ KEY FEATURES

🚀 100CCA High Cranking Output
Delivers strong cold-cranking performance for reliable engine starting in compatible applications.

⚡ 155A CA / MCA
Provides substantial cranking output for demanding motorcycle, marine and powersports starting applications.

🔥 200A Hot Cranking Amps
Provides strong engine-starting performance under warmer operating conditions.

💥 310A Pulse Hot Cranking Amps
Delivers a powerful short-duration current burst for demanding starting requirements.

🔋 12V 8Ah AGM Construction
Combines compact energy storage with sealed Absorbed Glass Mat technology for dependable starting performance.

❄️ Cold-Weather Capable
Designed to operate across a broad temperature range from -20°C to +50°C.

🛡️ Durable Flame-Resistant ABS Case
Strong ABS housing with a UL94-HB flame-resistance rating.

📉 Low Self-Discharge
Self-discharge is rated at ≤3% per month at 25°C, helping retain charge during periods of storage.

🔧 Secure M6 Terminals
Provides robust electrical connections for compatible starting systems.

🏍️ Compact BTX9-BS Fitment
Compact dimensions make the HC8 suitable for compatible motorcycles, powersports vehicles and small-engine installations.

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🚀 BUILT FOR ENGINE STARTING

The Fullriver HC8 is specifically designed for high-current engine-starting applications.

Unlike a deep cycle battery that is intended for repeated extended discharge, the HC8 is engineered to deliver a large burst of current over a short period to crank and start an engine.

This makes it particularly well suited to motorcycles, ATVs, personal watercraft, dirt bikes and other compatible powersports equipment.

⚠️ IMPORTANT: This battery is designed for engine starting and is not intended for deep-cycle use.

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⚡ HIGH CRANKING PERFORMANCE

The HC8 delivers multiple cranking ratings to demonstrate its high-current capability across different operating conditions.

• Cold Cranking Amps: 100A CCA
• Cranking Amps / Marine Cranking Amps: 155A CA / MCA
• Hot Cranking Amps: 200A HCA
• Pulse Hot Cranking Amps: 310A PHCA
• Short Circuit Current: 1100A

This high-current performance is supported by a low internal resistance of approximately 11mΩ.

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❄️ RELIABLE COLD-WEATHER PERFORMANCE

The HC8 is designed for operation across a temperature range of approximately -20°C to +50°C.

For operation below 0°C, the battery should be maintained above 60% state of charge to support dependable cranking performance.

Keeping the battery correctly charged is particularly important in colder conditions, when engine-starting demands increase.

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🔋 COMPACT 12V AGM POWER

Despite its compact footprint, the HC8 provides 8Ah capacity at the 20-hour rate and 7Ah at the 5-hour rate.

Its sealed AGM construction combines compact size, high current capability and low maintenance requirements, making it well suited to space-restricted engine-starting applications.

Reserve capacity is rated at approximately 8 minutes at a 25A load.

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🛡️ SEALED AGM CONSTRUCTION

The HC8 uses Absorbed Glass Mat technology to securely hold electrolyte within the battery's internal structure.

This sealed design eliminates routine electrolyte top-ups under normal operating conditions and helps provide dependable performance in compatible powersports and small-engine applications.

The battery is housed in a durable ABS case with a UL94-HB flame-resistance rating.

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🔌 CHARGING SPECIFICATIONS

Correct charging is essential for maintaining starting performance and battery service life.

Maximum charge current: 25% of C20 capacity

For an 8Ah C20 battery, this equates to approximately 2A maximum charge current.

Absorption voltage: 14.4V–14.7V

Float voltage: 13.5V–13.8V

Use a charger suitable for sealed AGM battery chemistry and the specified charging voltage range.

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📐 PRODUCT SPECIFICATIONS

Brand: Fullriver

Model: HC8

Battery type: High Crank AGM Starting Battery

Group size / case size: BTX9-BS

Nominal voltage: 12V

Capacity at 20HR rate: 8Ah

Capacity at 5HR rate: 7Ah

Cold Cranking Amps: 100A CCA

Cranking Amps / Marine Cranking Amps: 155A CA / MCA

Hot Cranking Amps: 200A HCA

Pulse Hot Cranking Amps: 310A PHCA

Short circuit current: 1100A

Reserve capacity at 25A: Approximately 8 minutes

Internal resistance: 11mΩ

Self-discharge: ≤3% per month at 25°C

Operating temperature: -20°C to +50°C

Terminal type: M6

Recommended terminal torque: 40–55 in-lbs

Case material: ABS plastic

Flame-resistance rating: UL94-HB

Maximum charge current: Approximately 2A / 25% of C20

Absorption voltage: 14.4V–14.7V

Float voltage: 13.5V–13.8V

Primary application: Engine starting

Deep-cycle use: Not recommended

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📏 DIMENSIONS & WEIGHT

Length: 138mm

Width: 86mm

Height including terminals: 101.6mm

Weight: Approximately 3.0kg

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🏍️ IDEAL APPLICATIONS

• Motorcycles
• ATVs
• Dirt bikes
• Jet skis and personal watercraft
• Powersports vehicles
• Small-engine equipment
• Compatible marine starting applications
• Other equipment requiring compatible BTX9-BS battery fitment

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📦 WHAT’S INCLUDED?

• 1 × Fullriver HC8 12V 8Ah 100CCA High Crank AGM Battery

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⚠️ FITMENT & COMPATIBILITY INFORMATION

Please confirm all battery specifications against your existing battery and equipment requirements before purchasing.

Check the required:

• Battery voltage – 12V
• Battery technology – AGM
• BTX9-BS case size
• Physical dimensions
• Terminal type – M6
• Terminal orientation
• CCA requirement
• Charging-system compatibility
• Starting-battery application

⚠️ IMPORTANT: Confirm physical size, terminal configuration and electrical requirements before purchase. Similar-looking batteries may have different terminal layouts or performance ratings.

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❓ FREQUENTLY ASKED QUESTIONS

What type of battery is the Fullriver HC8?

The HC8 is a sealed 12V AGM battery specifically designed for high-current engine-starting applications.

What is the capacity of the HC8?

The battery is rated at 8Ah at the 20-hour rate and 7Ah at the 5-hour rate.

What is the Cold Cranking Amps rating?

The Fullriver HC8 is rated at 100CCA.

What other cranking ratings does the battery have?

The supplied ratings include 155A CA / MCA, 200A HCA and 310A PHCA.

What is the BTX9-BS designation?

BTX9-BS refers to the battery's compatible case and fitment size. Always compare the physical dimensions and terminal configuration with your existing battery before ordering.

Is this battery suitable for motorcycles?

Yes. It is designed for compatible motorcycle and powersports engine-starting applications requiring the correct size, terminal configuration and electrical ratings.

Can it be used in an ATV or dirt bike?

Yes, where the vehicle requires a compatible 12V AGM starting battery with suitable BTX9-BS dimensions and cranking performance.

Can the HC8 be used in a jet ski?

It may be suitable for compatible personal watercraft and marine starting applications when the required voltage, dimensions, terminals and cranking ratings match.

Is the HC8 a deep cycle battery?

No. The HC8 is designed primarily for high-current engine starting and is not intended for repeated deep-cycle discharge.

What terminals does the HC8 use?

The battery uses M6 terminals with a recommended tightening torque of 40–55 in-lbs.

How much does the battery weigh?

The HC8 weighs approximately 3.0kg.

What are the dimensions?

The battery measures approximately 138mm long, 86mm wide and 101.6mm high including the terminals.

What charger should I use?

Use a charger suitable for sealed AGM batteries with an absorption voltage of approximately 14.4V–14.7V and a float voltage of approximately 13.5V–13.8V.

What is the recommended maximum charging current?

The maximum charge current is specified as 25% of the battery's C20 capacity, which is approximately 2A for this 8Ah battery.

Can the HC8 operate in cold weather?

Yes. Its specified operating range is approximately -20°C to +50°C. When operating below 0°C, maintaining the battery above 60% state of charge is recommended.

Does the battery require maintenance?

The sealed AGM construction eliminates routine electrolyte top-ups under normal operating conditions.

How do I know if the HC8 will fit my vehicle?

Compare the BTX9-BS case size, dimensions, terminal type and orientation, voltage, CCA rating and charging requirements against your existing battery and vehicle specifications before purchase.

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⚡ SERIOUS STARTING POWER IN A COMPACT BATTERY

Choose the Fullriver HC8 when your application requires strong cranking performance without the size and weight of a larger starting battery.

With 100CCA, 310A pulse hot-cranking capability, sealed AGM construction, low internal resistance and compact BTX9-BS dimensions, the HC8 is built to deliver dependable ignition power for compatible motorcycles, powersports equipment and small-engine applications.

Start stronger with compact, high-current Fullriver AGM performance.