AccuForce 12V 33Ah AGM VRLA Battery

Reliable 12V AGM Battery for UPS, Emergency Backup & Power Systems

The AccuForce 12V 33Ah AGM VRLA Battery is a sealed lead-acid battery designed for dependable standby and backup power applications. Using AGM (Absorbent Glass Mat) VRLA technology, this 12V battery is suited to a wide range of power backup and electrical systems where reliable energy storage is required.

With a 33Ah nominal capacity at the 10-hour rate, the AccuForce battery is designed for applications including Uninterruptible Power Supplies (UPS), emergency backup power supplies, electronic equipment, communication power supplies, DC power supplies and automatic control systems.

Key Features

• Brand: AccuForce
• Battery Type: AGM VRLA Battery
• Nominal Voltage: 12V
• Nominal Capacity: 33Ah at 10-hour rate
• 20-hour capacity: 34.6Ah
• 5-hour capacity: 28.9Ah
• 1-hour capacity: 20.5Ah
• Number of cells: 6
• Design floating life: 10 years at 20°C
• Internal resistance: 10 mΩ when fully charged at 25°C
• Self-discharge: Approximately 3% per month at 25°C
• Maximum charging current: 9.90A
• Maximum discharge current: 330A for 5 seconds at 25°C
• Short-circuit current: 880A at 25°C
• Weight: 9.2kg

Applications

The AccuForce 12V 33Ah AGM VRLA battery is specified for use in:

• Uninterruptible Power Supplies (UPS)
• Electric Power Systems (EPS)
• Emergency backup power supplies
• Electronic apparatus and equipment
• Communication power supplies
• DC power supplies
• Automatic control systems

Battery Construction

The battery uses an AGM VRLA construction incorporating lead dioxide, lead, ABS, rubber, fiberglass and sulfuric acid as part of its battery construction. The datasheet identifies the main components as the positive plate, negative plate, container & cover, safety valve, terminal and separator.

Capacity & Performance

The AccuForce 12V 33Ah provides different capacities depending on the discharge rate. At 25°C, the published capacity figures are:

The datasheet also provides constant-current and constant-power discharge characteristics across discharge periods ranging from 10 minutes through 20 hours.

Charging Specifications

For floating applications, the specified charging voltage is 2.25–2.30V per cell at 25°C. The specified boost charging voltage is 2.40–2.45V per cell at 25°C, with a maximum charging current of 9.90A.

The datasheet also specifies temperature compensation of -30mV/°C and lists a separate charging temperature compensation value of -18mV/°C.

Operating Temperature

The specified temperature ranges are:

• Discharge: -15°C to 50°C
• Charge: -10°C to 50°C
• Storage: -20°C to 50°C

Self-discharge is approximately 3% per month at 25°C.

Dimensions & Weight