12V 120Ah Deep Cycle AGM Battery (DC120-12B)

🔋 FULLRIVER DC120-12B DEEP CYCLE AGM BATTERY

12V 120Ah Sealed Deep Cycle AGM Battery – Maintenance-Free Power for Demanding 12V Systems

⚡ High-capacity deep cycle energy storage with sealed AGM construction, dependable cycling performance and maintenance-free operation.

The Fullriver DC120-12B is a premium 12V 120Ah Deep Cycle AGM battery designed for applications requiring reliable stored energy, repeated discharge and recharge capability, and consistent long-term performance.

With a rated capacity of 120Ah at the 20-hour rate, the DC120-12B provides substantial energy storage for compatible caravan, RV, solar, marine auxiliary, backup, off-grid and battery-bank applications.

Its sealed AGM construction eliminates routine electrolyte top-ups under normal operating conditions, making the DC120-12B a practical choice for demanding systems where dependable power and reduced maintenance are important.

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⚡ KEY FEATURES

🔋 12V 120Ah Deep Cycle Capacity
Provides substantial stored energy for compatible 12V deep cycle, auxiliary, backup and battery-bank applications.

🔁 Built for Repeated Cycling
Designed for applications requiring regular discharge and recharge rather than dedicated short-duration engine starting.

🔒 Sealed AGM Construction
Absorbed Glass Mat technology provides clean, dependable operation without conventional free-flowing electrolyte.

🛠️ Maintenance-Free Design
No routine fluid top-ups are required under normal operating conditions.

⚡ Strong Sustained Discharge Capability
Detailed constant-current ratings provide useful performance information across discharge periods from 15 minutes to 20 hours.

🌡️ Performance Rated at 25°C
The supplied constant-current discharge specifications are referenced at 77°F / 25°C for consistent performance comparison.

🚐 Versatile 12V Power Storage
Suitable for consideration in compatible caravan, RV, marine, solar, backup and off-grid electrical systems.

🔋 Suitable for Battery Banks
Can be incorporated into correctly engineered multi-battery systems where voltage, charging, cabling and protection requirements are properly matched.

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🔋 DESIGNED FOR DEEP CYCLE POWER

The Fullriver DC120-12B is designed primarily for applications where stored energy is delivered over an extended period and the battery is repeatedly recharged after use.

Its 120Ah capacity at the 20-hour rate makes it suitable for compatible systems requiring substantial energy storage for auxiliary equipment, recreational power, backup loads and renewable-energy applications.

Unlike a dedicated engine-starting battery, the DC120-12B is intended primarily for sustained deep cycle energy delivery.

⚠️ IMPORTANT: No dedicated CCA or other cranking-current rating was supplied for the DC120-12B. It should not be selected as an engine-starting battery unless the equipment manufacturer specifically confirms suitability.

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🔒 SEALED AGM TECHNOLOGY

The DC120-12B uses sealed Absorbed Glass Mat battery technology.

AGM construction retains the electrolyte within absorbent internal separators, helping provide clean and maintenance-free operation under normal conditions.

Routine watering or electrolyte top-ups are not required, reducing servicing compared with conventional flooded lead-acid batteries.

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⚡ 120AH STORED ENERGY CAPACITY

The DC120-12B is rated at 120Ah at the 20-hour discharge rate.

This rating represents substantial stored energy for compatible 12V systems where longer runtime and sustained power delivery are required.

Actual available runtime will depend on the connected load, discharge rate, battery condition, operating temperature, charging history and system efficiency.

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📊 CONSTANT CURRENT DISCHARGE PERFORMANCE

The supplied constant-current discharge ratings below are specified at 77°F / 25°C using a 1.75V-per-cell cut-off voltage.

• 15-minute rate: 182A
• 30-minute rate: 110.3A
• 45-minute rate: 90.3A
• 1-hour rate: 75.5A
• 2-hour rate: 42.2A
• 3-hour rate: 29.2A
• 5-hour rate: 19.1A
• 8-hour rate: 13.65A
• 10-hour rate: 11.16A
• 12-hour rate: 9.6A
• 20-hour rate: 6.0A

These figures illustrate how available current changes with discharge duration and can assist when assessing the battery for compatible continuous-load applications.

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🌡️ PERFORMANCE REFERENCE CONDITIONS

The supplied discharge ratings are referenced at 77°F / 25°C.

Battery performance can vary at temperatures above or below the reference condition, and actual capacity will also depend on discharge rate, battery age, state of charge and overall system conditions.

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🚐 SUITABLE APPLICATIONS

• Caravan and RV power systems
• Solar battery storage systems
• Renewable-energy installations
• Marine auxiliary power systems
• 12V backup power systems
• Standby power applications
• Off-grid power systems
• Portable power installations
• Deep cycle battery banks
• Compatible 12V auxiliary systems

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📐 PRODUCT SPECIFICATIONS

Brand: Fullriver

Model: DC120-12B

Battery type: Sealed AGM

Application type: Deep Cycle

Nominal voltage: 12V

Capacity at 20HR rate: 120Ah

Maintenance: Maintenance-Free

Discharge rating temperature reference: 77°F / 25°C

Constant-current cut-off voltage: 1.75V per cell

15-minute discharge current: 182A

30-minute discharge current: 110.3A

45-minute discharge current: 90.3A

1-hour discharge current: 75.5A

2-hour discharge current: 42.2A

3-hour discharge current: 29.2A

5-hour discharge current: 19.1A

8-hour discharge current: 13.65A

10-hour discharge current: 11.16A

12-hour discharge current: 9.6A

20-hour discharge current: 6.0A

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📏 DIMENSIONS & TERMINALS

Physical dimensions were not included in the supplied DC120-12B product information.

Terminal type and terminal torque were also not supplied.

⚠️ IMPORTANT: Confirm the exact battery dimensions, terminal style, terminal orientation and polarity before purchase to ensure physical compatibility with your installation.

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📦 WHAT’S INCLUDED?

• 1 × Fullriver DC120-12B 12V 120Ah Sealed AGM Deep Cycle Battery

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⚠️ FITMENT & COMPATIBILITY INFORMATION

Please confirm the electrical, physical and charging requirements of your system before purchasing.

Check the required:

• Battery voltage – 12V
• Battery chemistry – AGM
• Battery capacity – 120Ah at the 20HR rate
• Physical dimensions
• Terminal type
• Terminal orientation and polarity
• Charging profile
• Available installation space
• Battery restraint requirements
• Battery-bank configuration where applicable
• Deep cycle application requirements

⚠️ IMPORTANT: Do not purchase based on voltage and capacity alone. Physical dimensions, terminal configuration, charging requirements and application suitability must also match your equipment.

⚠️ IMPORTANT: Use charging equipment suitable for sealed AGM battery chemistry and configured to the manufacturer’s recommended charging requirements.

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❓ FREQUENTLY ASKED QUESTIONS

What type of battery is the Fullriver DC120-12B?

The DC120-12B is a sealed 12V Deep Cycle AGM battery designed for repeated discharge and recharge applications.

What is the capacity of the DC120-12B?

The battery is rated at 120Ah at the 20-hour discharge rate.

Is the DC120-12B a deep cycle battery?

Yes. It is designed primarily for compatible deep cycle, standby and auxiliary energy-storage applications.

Is the DC120-12B maintenance-free?

Yes. Its sealed AGM construction means routine electrolyte top-ups are not required under normal operating conditions.

Is the DC120-12B a sealed battery?

Yes. The supplied product information identifies it as a sealed AGM battery.

Does the DC120-12B have a CCA rating?

No dedicated CCA rating was supplied with the provided product information.

Can the DC120-12B be used for engine starting?

The DC120-12B is designed primarily for deep cycle power. Because no dedicated cranking specification was supplied, it should not be selected as an engine-starting battery unless the equipment manufacturer confirms suitability.

What does 120Ah at the 20-hour rate mean?

The supplied 20-hour discharge rating is 6.0A at 25°C to a 1.75V-per-cell cut-off. Over the specified test period, this corresponds to the battery’s nominal 120Ah capacity rating.

What is the 1-hour discharge rating?

The supplied constant-current rating at the 1-hour discharge period is 75.5A at 25°C using a 1.75V-per-cell cut-off voltage.

What is the 5-hour discharge rating?

The supplied constant-current rating at the 5-hour discharge period is 19.1A.

What is the 10-hour discharge rating?

The supplied constant-current rating at the 10-hour discharge period is 11.16A.

What temperature are the discharge ratings based on?

The supplied performance ratings are referenced at 77°F / 25°C.

Will battery performance change with temperature?

Yes. Actual available capacity and discharge performance can vary with temperature, load, battery condition, state of charge and other operating conditions.

Can the DC120-12B be used in a caravan or RV?

Yes, where the system requires a compatible 12V 120Ah AGM deep cycle battery and the physical dimensions, terminals and charging requirements match the installation.

Can the DC120-12B be used for solar power?

Yes. It may be suitable for compatible solar and renewable-energy systems designed around a 12V AGM battery with appropriate charging equipment.

Can the DC120-12B be used for marine auxiliary power?

It may be suitable for compatible marine auxiliary applications where the battery’s voltage, capacity, dimensions, terminals and charging requirements match the system.

Can the DC120-12B be used for backup or standby power?

Yes. It may be suitable for compatible backup and standby systems requiring a 12V sealed AGM deep cycle battery with suitable charging equipment.

Can the DC120-12B be used for off-grid power?

Yes. It may be suitable for correctly designed off-grid systems where its voltage, capacity, AGM chemistry and charging requirements are appropriate.

Can multiple DC120-12B batteries be connected together?

Multiple matched batteries may be used in a correctly engineered battery bank where the required voltage, charging configuration, cable sizing, circuit protection and battery matching are appropriate.

Should batteries in a bank be matched?

For best system consistency, use batteries of the same model, chemistry, capacity, age and condition unless the equipment or system manufacturer specifically approves another configuration.

What charger should I use?

Use charging equipment suitable for sealed AGM battery chemistry and configured to Fullriver’s recommended requirements for the DC120-12B.

What charging voltage does the DC120-12B require?

No specific charging voltage was supplied with the provided product information, so a numerical charging voltage has not been assumed. Use the manufacturer’s recommended AGM charging profile.

What terminals does the DC120-12B use?

The terminal type was not included in the supplied product information. Confirm the exact terminal configuration before purchase.

What are the DC120-12B dimensions?

Physical dimensions were not included in the supplied product information. Confirm the exact length, width and height before ordering to ensure correct fitment.

How do I know if the DC120-12B is suitable for my system?

Confirm that your system requires a 12V 120Ah sealed AGM deep cycle battery, then verify the physical dimensions, terminal configuration, polarity, charging profile, installation space and application requirements before purchase.

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🔋 HIGH-CAPACITY 120AH DEEP CYCLE AGM POWER

Choose the Fullriver DC120-12B when you need substantial 12V stored energy, dependable deep cycle performance and maintenance-free AGM battery technology.

With 120Ah capacity, detailed constant-current discharge performance and sealed AGM construction, the DC120-12B is a practical choice for compatible caravan, RV, solar, marine, backup, standby, off-grid and battery-bank applications.

Power your 12V system with dependable Fullriver Deep Cycle AGM performance.