0% VAT 12V 8.5kWh/666Ah double row - Premium Lifepo4 battery - durable, safe, Made in Germany

All dimensions and technical data provided refer to the fully assembled and operational end product.

Quality begins within – and remains traceable with us.

The battery cells are THE The heart of a battery, and therefore the defining characteristic of the product. That's why we use carefully selected, top-quality LiFePO4 cells from the brand-name manufacturer EVE in every one of our batteries, and we provide a detailed test report for each individual cell. With us, you can rely on us to deliver only high-quality, new, industrial-grade products – and you can even verify this yourself.

But for us, it's not just about which cells are used, but also about ensuring their quality remains transparent for our customers. While the components used in many battery systems are not visible, we prioritize openness in our high-quality battery kits. This means cell type, specifications, and quality are clearly defined and verifiable for you. You know exactly what's working inside your battery and can personally verify its high-quality condition. Your advantages:

• Clearly identified MB31 cell type of the highest quality grade directly from the brand manufacturer EVE Energy.
• Technical specifications openly communicated
• No anonymous components

Battery quality is something you shouldn't leave to chance.

All our LiFePO4 systems are developed and manufactured in Germany – with years of expertise, our own development lab, rigorous quality controls, and clear responsibility for every single product. As the manufacturer, we personally stand behind our batteries. No anonymous commodities, no unclear components – just precisely engineered energy storage technology of the highest quality.

You benefit from short delivery times, direct manufacturer support, and industrial manufacturing standards. Every battery is designed for safety, longevity, and consistent performance – for reliable operation for decades to come.

This means for you:

✔ Designed and manufactured in Germany
✔ Expertise and know-how through our own development department
✔ Long-term planned investment
✔ Proven thousands of times
✔ Personal responsibility instead of mass imports
✔ Strict quality controls
✔ Direct support from the manufacturer
✔ 3-year warranty with German guarantor
✔ Over 700 verified customer reviews on Trustpilot and TrustedShops

A battery is a decision for many years. Choose tested quality – and a manufacturer who stands by it.

Start with the capacity you truly need today – and expand your storage system flexibly at any time. Our Lifepo.de The kits are modular and technically designed to be easily expanded later with identical systems. If your energy needs increase due to a heat pump, electric car, or additional appliances, you can expand your system selectively instead of investing in a completely new one.

This means for you:

✔ Get started as needed
✔ Expand gradually
✔ Keep investment costs predictable
✔ Being future-proof

This is how your energy storage system grows with your requirements – structured, economical and without unnecessary oversizing from the start.

Start today. Expand flexibly tomorrow.

Keep an eye on your battery at all times – conveniently via smartphone or tablet.

Thanks to the integrated Bluetooth module, you can see all relevant data directly in the free app – without any wiring effort.
You can see in real time:

• Charging status
• Charging and discharging capacity
• Temperature monitoring of battery cells and battery management system
• Cell voltages of each individual battery cell
• Total voltage of the battery system
• Number of charge and discharge cycles
• Status and protection messages
  

Our integrated monitoring allows you to continuously track the condition of your battery – for maximum lifespan and operational safety.

Your advantages:

✔ Comprehensive battery monitoring of all battery parameters for carefree and safe operation
✔ Early detection of possible deviations
✔ Optimal utilization of capacity
✔ Transparent system diagnostics
✔ No additional measuring devices are necessary.
✔ Ideal for PV systems, motorhomes or off-grid systems

The integrated Bluetooth monitoring makes your battery not only powerful, but also intelligent.

Lifepo4 technology impresses with significantly higher usable capacity, considerably longer lifespan and a significantly lower weight compared to classic lead or gel systems.

Why LiFePO4 technology? Clear advantages in numbers:

• Significantly lighter weight: approximately 70% lighter than comparable lead-acid/gel batteries.
• Full usable capacity without reduction in lifespan: Lead-acid/gel batteries only about 50% usable and rapid aging.
• LiFePO4 technology has no memory effect and is maintenance-free. & Reliable operation, no refilling required, no gassing during normal operation
• Highly stable cell chemistry with high thermal safety: LiFePO4 is rightly considered the safest battery technology.
• Enormous cycle stability of 8,000 charge cycles: Lead-acid/gel batteries: usually only 500–1,200 cycles
• Long lifespan: Realistically, 20 years of operation with daily use.
• LiFePO4 has a significantly higher total energy output over its lifetime than lead-acid/gel batteries.

Result: More usable energy, lower weight, less maintenance and a significantly longer lifespan compared to conventional lead technology.

You can find a detailed performance comparison of our LiFePO4 batteries here: for performance comparison

More than just a kit: With us, you receive a fully thought-out premium complete solution with high-quality, perfectly matched components – and an exceptionally detailed, field-proven step-by-step guide that safely leads you through the entire setup and leaves no questions unanswered.
Each battery comes with all necessary accessories, perfectly fitting covers and mounting material, so you can start safely and without worry right away.
And if any questions arise: Our experienced battery experts are there for you.

The following parts are included in the delivery: