Offgridtec® AGM 32Ah 20HR 12V Solar Battery—Extremely Cycle-Resistant

The Offgridtec AGM 32Ah 20HR 12V Solar Battery (MPN: 2-01-001480) is a maintenance-free lead-acid battery (AGM) designed for use in solar and off-grid systems, UPS systems, alarm systems, and other applications involving cyclic or continuous buffer charging. Thanks to its high cycle life, low self-discharge, and robust AGM technology, it is suitable for both regular charging and discharging cycles and for reliable standby operation.

The AGM Battery at a Glance

• 32.6 Ah capacity (20HR)
• Maintenance-free AGM (Absorbent Glass Mat) technology
• Up to 500 charge cycles at a 50% depth of discharge
• Up to 1,200 charge cycles at a 30% depth of discharge
• Low self-discharge of approx. 2% per month at 25 °C
• Suitable for cyclic operation and standby applications
• Rugged ABS case with carrying handle for easy transport
• Up to 5 years of trickle charging or standby operation under suitable conditions
• 2-year manufacturer’s warranty—you can find information on the warranty terms here

AGM technology for a reliable power supply

The Offgridtec AGM series utilizes proven Absorbent Glass Mat (AGM) technology. In this process, the electrolyte is bound within a glass fiber mat. As a result, the battery is completely maintenance-free and can be safely used in many stationary applications. At the same time, AGM technology is characterized by low internal resistance, which allows even higher currents to be reliably delivered. The battery is suitable for both cyclic operation—where it is regularly charged and discharged, such as in solar systems—and standby operation, where it remains permanently charged and only supplies power during a power outage.

High cycle stability for daily use

A key selection criterion for solar batteries is their service life during charging and discharging. The Offgridtec AGM 32Ah achieves:

• up to 500 cycles at a 50% depth of discharge (DoD)
• up to 1,200 cycles at a 30% depth of discharge (DoD)

The depth of discharge describes the proportion of the battery’s capacity that is drawn. A lower depth of discharge generally increases the number of possible charge cycles and thus the battery’s service life.

Typical Applications

With its 32 Ah capacity, this AGM battery is suitable for numerous stationary applications, including:

• 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

Thanks to its low self-discharge rate, the battery remains reliably operational even during extended periods of inactivity.

Robust construction

The housing is made of durable ABS plastic. Inside, lead dioxide and lead plates with glass fiber separators are used. The battery features sealed cells and is designed for maintenance-free operation. An integrated carrying handle facilitates transport and installation.

Technical Specifications

• Nominal voltage: 12 V
• Capacity (20HR): 32.6 Ah (1.63 A at 10.8 V)
• Capacity (10HR): 32.7 Ah
• Capacity (5HR): 26.9 Ah
• Capacity (1HR): 18.2 Ah
• Internal resistance (fully charged, 25 °C): ≤ 16 mΩ
• Self-discharge: approx. 2% per month at 25 °C
• Charging voltage (cyclic operation): 14.40–15.00 V
• Charging voltage (standby operation): 13.50–13.80 V
• Maximum recommended charging current: 9.90 A
• Capacity at 40 °C: 102%
• Capacity at 25 °C: 100%
• Capacity at 0 °C: 85%
• Capacity at -15 °C: 65%
• Dimensions (L × W × H): 195 × 130 × 159 mm
• Total height: 180 mm
• Weight: approx. 10.8 kg

Package Contents

1x Offgridtec® AGM 32Ah 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 (BattV)

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.