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Victron 12-300 Lithium LiFePO4 Smart Battery (12.8V / 300Ah)

Regular price £1,514.91 GBP
Tax included


Care information

To help you get the most from your purchase:

  • Follow the manufacturer's care and maintenance instructions.
  • Store products clean and dry when not in use.
  • Clean with warm water and a mild detergent unless otherwise stated.
  • Avoid prolonged exposure to harsh weather when the product is not in use.
  • Regular maintenance will help extend the life of your caravan and camping equipment.

If you have any questions about installation, compatibility or maintenance, our team is happy to help.

Delivery and Shipping

🚚 Delivery & Shipping

We aim to dispatch all in-stock orders within 1–2 working days. Orders placed before 3pm are usually dispatched the same working day, although this may take up to 48 hours during busy periods.

  • Standard UK Delivery: 2–3 working days
  • Next Day Delivery: Available on selected products
  • Large, oversized or pallet items: May take 2–5 working days
  • Tracking information will be provided once your order has been dispatched.
  • All deliveries require a signature upon arrival.

Please note that oversized, overweight or hazardous items may incur additional delivery charges, which will be displayed at checkout.

If an item is temporarily out of stock, we'll notify you and dispatch it as soon as it becomes available.

Need delivery outside the UK or have a special delivery request? Contact our customer support team for a personalised shipping quote.

Returns & Warranty

We offer a 30-day returns policy on unused items in their original packaging. If your item develops a fault, we'll work with the manufacturer to resolve it quickly. Please see our Returns Policy for full details.

Need Help?

Not sure if this product is compatible with your caravan, motorhome or awning? Contact our team before ordering and we'll happily check compatibility for you.

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The Victron Lithium Smart 12.8V 300Ah Battery is a high-capacity Lithium Iron Phosphate (LiFePO4) battery designed for demanding energy storage applications including motorhomes, campervans, marine systems, off-grid solar installations, backup power systems, and commercial energy storage. Delivering an impressive 300Ah capacity and 3840Wh of stored energy, this premium battery offers exceptional performance, long service life, and advanced monitoring capabilities.

Featuring integrated Bluetooth Smart technology and built-in cell balancing, the battery allows real-time monitoring of voltage, temperature, cell status, and overall battery performance through the VictronConnect app. Designed for seamless integration with Victron Battery Management Systems (BMS), it provides a safe, intelligent, and highly efficient energy storage solution.

Compared to traditional lead-acid batteries, the Lithium Smart range offers significantly lower weight, faster charging, deeper discharge capability, and a much longer cycle life, making it one of the most advanced lithium battery solutions available for professional and leisure applications.

Key Features

  • Premium Lithium Iron Phosphate (LiFePO4) technology
  • 12.8V nominal voltage
  • 300Ah capacity
  • 3840Wh energy storage
  • Built-in Bluetooth Smart monitoring
  • Integrated cell balancing
  • Real-time monitoring via VictronConnect app
  • High charge and discharge efficiency
  • Lightweight compared to lead-acid alternatives
  • Long cycle life
  • Series and parallel connection capability
  • Suitable for 12V, 24V and 48V battery banks
  • Compatible with Victron Battery Management Systems
  • Maintenance-free operation
  • Ideal for off-grid, marine and mobile power systems

Technical Specifications

Specification Value
Manufacturer Victron Energy
Model Lithium Smart 12.8V 300Ah
Part Number BAT512130610
Product Code VV-156
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Nominal Voltage 12.8V
Nominal Capacity 300Ah
Nominal Energy 3840Wh
Round Trip Efficiency Up to 92%
Maximum Continuous Discharge Current 400A
Recommended Continuous Discharge Current ≤ 300A
Bluetooth Connectivity Built-In
Cell Balancing Integrated
Series Connection Supported
Parallel Connection Supported
Terminal Type M8
Dimensions (H × W × D) 237 × 321 × 152mm
Weight Approx. 29kg
Warranty 5 Years

Cycle Life Performance

Depth of Discharge Expected Cycle Life
80% DoD Up to 2,500 Cycles
70% DoD Up to 3,000 Cycles
50% DoD Up to 5,000 Cycles

The exceptional cycle life significantly reduces replacement costs compared with AGM and Gel battery technologies while delivering consistent performance throughout its lifespan.

Smart Bluetooth Monitoring

Using the free VictronConnect app, users can:

  • Monitor battery voltage
  • View individual cell voltages
  • Check battery temperature
  • Monitor battery status and health
  • Review battery performance history
  • Diagnose system faults
  • Update firmware

Built-in Bluetooth removes the need for additional monitoring hardware in many installations.

Compatible Victron BMS Systems

For safe operation, the battery must be used with a compatible Victron BMS, including:

  • Victron Smart BMS 12/200
  • Victron Smart BMS CL 12/100
  • Victron Lynx Smart BMS
  • Victron VE.Bus BMS
  • Victron VE.Bus BMS V2
  • Victron smallBMS

The BMS protects the battery from overcharging, over-discharging, high temperatures, and cell imbalance.

Advantages of LiFePO4 Technology

  • Longer lifespan than lead-acid batteries
  • Faster charging acceptance
  • Higher usable capacity
  • Lightweight construction
  • Excellent thermal stability
  • Maintenance-free operation
  • Consistent voltage output
  • Deep discharge capability

Ideal Applications

  • Motorhomes and campervans
  • Caravans
  • Marine and yacht electrical systems
  • Off-grid solar systems
  • Renewable energy storage
  • Tiny homes
  • Backup power installations
  • Commercial mobile power systems
  • Telecommunications equipment
  • Expedition and overland vehicles

Why Choose the Victron Lithium Smart 12.8V 300Ah?

The Victron Lithium Smart 12.8V 300Ah is one of the highest-capacity batteries in the Victron Smart Battery range, delivering 3840Wh of reliable energy storage in a compact and lightweight package. With integrated Bluetooth monitoring, advanced cell balancing, exceptional cycle life, and compatibility with Victron's industry-leading battery management systems, it provides a premium energy storage solution for demanding off-grid, marine, and mobile power applications. Whether powering a large motorhome, yacht, or renewable energy system, it delivers outstanding performance, efficiency, and long-term value.

Payment & Security

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