Offgridtec® AGM 7Ah 20HR 12V Solar Battery—Extremely Cycle-Stable

The Offgridtec AGM 7Ah 20HR 12V Solar Battery (MPN: 2-01-001000) is a sealed AGM lead-acid battery designed for use in solar and off-grid systems, UPS systems, and numerous stationary power supply applications. Thanks to its cycle-resistant design, maintenance-free construction, and low self-discharge rate, it is suitable for both cyclic applications and standby operation.

Product Highlights

• AGM (Absorbent Glass Mat) technology – electrolyte bound in a glass fiber mat
• 12V nominal voltage with 7.2Ah capacity (20HR)
• Maintenance-free, sealed design
• High cycle life with over 260 charge cycles at 100% depth of discharge
• Low self-discharge of approx. 2% per month at 25 °C
• Suitable for cyclic operation and standby applications
• Robust ABS housing
• Universally applicable in solar, alarm, telecommunications, and UPS systems
• 2-year manufacturer’s warranty—you can find information on the warranty terms here

AGM technology for a reliable power supply

The battery uses proven AGM (Absorbent Glass Mat) technology. In this design, the electrolyte is completely bound within a glass fiber mat, allowing the battery to operate leak-proof and eliminating the need for regular maintenance. This design also reduces self-discharge and enables reliable operation both during recurring charge and discharge cycles and in standby mode. Thanks to its robust construction, the battery is particularly well-suited for applications that require a reliable power supply over long periods of time.

Suitable for a Wide Range of Applications

With its compact design and 12V system voltage, the AGM battery is highly versatile. Typical applications include:

• Solar systems and small off-grid systems
• Uninterruptible power supplies (UPS)
• Emergency power supplies
• Alarm and security systems
• Telecommunications systems
• Communication systems
• DC power supplies
• Automatically Controlled Systems

Suitable for cyclic operation and standby

The Offgridtec AGM 7Ah was developed for both regularly recurring charge and discharge cycles and for continuous standby operation. For cyclic use, the manufacturer recommends a charging voltage of 14.40 to 15.00 V with a temperature compensation of -30 mV/°C. In standby mode, the recommended float charge voltage is between 13.60 and 13.80 V at -20 mV/°C. The maximum recommended charge current is 2.16 A.

Robust Construction and Consistent Performance

The battery features a durable ABS casing. Inside, it uses lead dioxide and lead plates with glass fiber separators, as well as sulfuric acid as the electrolyte. According to the manufacturer, regular quality checks and a special grid alloy ensure consistent performance.

Technical Specifications

• Nominal voltage: 12 V
• Capacity (20HR): 7.20 Ah
• Capacity (10HR): 6.90 Ah
• Capacity (5HR): 6.45 Ah
• Capacity (1HR): 4.31 Ah
• Internal resistance: ≤ 32 mΩ (fully charged at 25 °C)
• Self-discharge: approx. 2% per month at 25 °C
• Maximum recommended charging currents: 2.16 A
• Charging voltage (cyclic operation): 14.40–15.00 V
• Charging voltage (standby): 13.60–13.80 V
• Capacity as a function of operating temperature:
  • 40 °C: 102%
  • 25 °C: 100%
  • 0 °C: 85%
  • -15 °C: 65%
• Dimensions (L × W × H): 151 × 65 × 94 mm
• Total height: 100 mm
• Weight: approx. 2.15 kg (±5%)

Package Contents

1x Offgridtec® AGM 7Ah 20HR 12V solar battery

Battery Regulations

You are legally required to return batteries. After use, you can return them to our store or to a local municipal collection point.

Important Note According to the Battery Ordinance

Regulation on the Take-Back and Disposal of Used Batteries. Batteries and rechargeable batteries do not belong in household trash. Consumers are legally required to return used batteries. Returns can be made at Offgridtec.com or at the municipality’s public collection points.

Pursuant to Section 10 of the Battery Act, the seller must collect a deposit of 7.50 euros, including sales tax, if the end consumer does not have a used starter battery at the time of purchase. If the seller does not collect a deposit—because the used battery was disposed of properly or an old-for-new exchange took place—this amount is also not deductible from the purchase price.