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Victron Lithium SuperPack 20AH Battery

Victron Lithium SuperPack 20AH Battery

BY: Victron Energy | SKU: BAT512020705 Availability: In Stock
$326.00
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Victron Lithium SuperPack 20Ah Battery

The Victron Lithium SuperPack 20Ah Battery (BAT512020705) is a compact, high-performance 12.8V LiFePO₄ (Lithium Iron Phosphate) battery designed for long-lasting power in solar, marine, RV, and mobile applications. It combines a built-in Battery Management System (BMS) and safety switch, eliminating the need for external components or complex setup.

With over 2,500 cycles at 80% depth of discharge, the SuperPack delivers exceptional efficiency, reliability, and lifespan compared to traditional AGM or Gel batteries. The internal BMS automatically disconnects in the event of overcharge, over-discharge, or extreme temperature — ensuring safety and consistent performance.

Simple, efficient, and safe — the Victron SuperPack is the ultimate plug-and-play lithium solution for off-grid and backup power systems.

Victron Lithium SuperPack 20Ah Battery Features

Integrated BMS and Safety Switch - Includes an internal Battery Management System and automatic safety cutoff that protect against overcharge, over-discharge, and overheating — no additional BMS required.

Abuse-Proof Operation - The SuperPack is self-protecting and will safely disconnect during improper operation, preventing irreversible damage.

High Efficiency - Delivers 92% round-trip efficiency, outperforming standard lead-acid batteries and optimizing solar charging systems.

Long Cycle Life - Rated for 2,500 cycles at 80% depth of discharge, offering years of dependable service with minimal maintenance.

Easy Installation - The all-in-one design allows for fast installation — simply connect and power up without additional external electronics.

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Victron Lithium SuperPack 20Ah Battery Applications

  • Marine & Boating – Reliable energy for navigation, lighting, and onboard systems.
  • RVs & Camper Vans – Ideal for powering off-grid appliances and accessories.
  • Solar Energy Storage – Efficient and long-lasting energy storage for home or mobile solar setups.
  • Work Vans & Portable Power Systems – Compact solution for professionals and field operations.
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What's Included

Everything you need is included with your product.

  • 1 × Victron Lithium SuperPack 12.8V 20Ah Battery (BAT512020705)
  • User Manual

Warranty

  • Victron Energy Standard Warranty: 5 Years

Victron Lithium SuperPack 20Ah Battery Specifications

Category Specifications
Model 12.8/20
Chemistry LiFePO₄
Nominal Voltage 12.8V
Nominal Capacity @ 25°C 20Ah
Nominal Capacity @ 0°C 16Ah
Nominal Energy @ 25°C 256Wh
Cycle Life (80% DoD, 25°C) 2500 cycles
Capacity Loss <1% per 100 cycles @25°C, 100% DoD
Energy Loss <1% per 100 cycles @25°C, 100% DoD
Round Trip Efficiency 92%

Charge and Discharge

Category Specifications
Max Continuous Discharge Current 30A
Peak Discharge Current (10 sec) 80A
End of Discharge Voltage 10V
Charge Voltage, Absorption 14.2V – 14.4V
Charge Voltage, Float 13.5V
Max Continuous Charge Current 15A

Operating Conditions

Category Specifications
Parallel Configuration Yes, unlimited
Series Configuration No
Operating Temperature Discharge: -20°C to +50°C / Charge: 0°C to +45°C
Storage Temperature -40°C to +65°C
Max Storage Time When Fully Charged 1 year ≤25°C / 3 months ≤40°C
Humidity (Non-Condensing) Max. 95%
Protection Class IP43

Mounting

Category Specifications
Can Be Placed on Longest Side Yes (4)

Other

Category Specifications
Power Connection (Threaded Inserts) M5
Dimensions (H × W × D) 167 × 181 × 77 mm
Weight 3.5 kg

Notes

  • The battery may disconnect when a load with a high input capacitance is connected, such as an inverter. The battery will however retry and reconnect after approximately 10 seconds.
  • The absorption period should preferably not exceed 4 hrs. A longer absorption period may slightly reduce service life.
  • For serial number HQ2040 and newer, the charge is automatically blocked when the cell temperature decreases below 0 ± 3 °C. It will accept charging again when the temperature is above +3 ± 3 °C. Discharge is automatically blocked when cell temperature decreases below −20 ± 3 °C. This protection resets when temperature is above −15 ± 3 °C.
  • The battery can be mounted upright and on its longest sides (assuming the exceptions in note 5), but not with both battery terminals facing down.
  • Do not lay the battery on its long side where the positive terminal (+) is at the bottom—see the image on the left.

Frequently-Asked Questions

Do I need an external BMS?

No. The SuperPack includes a fully integrated BMS that automatically manages protection and balance.

Can I connect multiple batteries in series?

No. Only parallel connections are supported.

What’s the main advantage of LiFePO₄ over lead-acid?

LiFePO₄ offers higher efficiency, longer cycle life, and better performance even under partial charge — making it ideal for solar and mobile power systems.

Is this battery suitable for off-grid solar setups?

Yes. Its high efficiency and built-in protections make it perfect for solar charging and long-term off-grid use.