Giantz 12V 200Ah AGM deep-cycle battery for larger caravan, marine, camping and off-grid storage systems where its size and approximately 42.5kg weight can be accommodated. It provides approximately 2,400Wh of nominal energy and supports compatible solar, DC-DC and mains charging.

Key Specifications

• Nominal voltage: 12V
• Rated capacity: 200Ah at the 10-hour rate
• Approximate nominal energy: 2,400Wh
• Battery type: sealed AGM deep cycle
• Overall dimensions: 48.3 × 17 × 24.1cm
• Approximate weight: 42.5kg
• Container material: ABS
• Terminals: bolt-down
• Internal resistance: approximately 2.5mΩ
• Maximum discharge current: 1,800A for 5 seconds
• Maximum charge current: 37.5A
• Listed cycle life: up to 1,400 cycles at 30% depth of discharge
• Listed self-discharge: approximately 3% per month at 25°C
• SKU: BATTERY-C-AGM-200

Charging Data

• Float charge: 13.5–13.8V
• Equalise charge: 13.8–14.1V
• Cycle charge: 14.4–15.0V
• Charge temperature: -20°C to 50°C
• Discharge temperature: -15°C to 50°C
• Storage temperature: -20°C to 50°C

Use AGM-compatible charging equipment and remain within the listed 37.5A maximum charge current. Confirm all settings against the supplied manual and the controller or charger documentation.

Runtime and High-Current Loads

Nominal energy is approximately 2,400Wh. Actual usable energy is lower and depends on discharge rate, depth of discharge, battery condition, temperature, cable losses and charging availability.

The 1,800A rating applies for five seconds only; it is not a continuous-current rating. Before using a power inverter, confirm the battery’s permitted continuous discharge current and ensure the cable, fuse, isolator and connections are correctly rated.

Installation Requirements

This is a heavy battery. Confirm the installation structure can safely support approximately 42.5kg, measure the available space and secure the battery against movement. Follow the manufacturer’s orientation and ventilation requirements and use appropriate lifting practices.

Recharge promptly after use and periodically during storage. Avoid repeated excessive discharge, which can shorten AGM battery life.

Package Contents

• One Giantz 200Ah AGM deep-cycle battery
• User manual

No separate battery box, charger or wiring accessories are listed as included.

Compare the lighter MOBI 170Ah AGM battery or browse all AGM batteries. For system charging, explore MPPT controllers and DC-DC chargers.

Frequently Asked Questions

How much energy does a 200Ah AGM battery store?

At 12V, nominal energy is approximately 2,400Wh. Usable energy is lower and varies with the load and manufacturer’s depth-of-discharge guidance.

Can this battery support a high-power inverter?

Capacity alone cannot confirm this. Check the battery’s continuous discharge limit, inverter DC current, appliance surge, cable size, voltage drop and fuse rating.