When we launched the original Fogstar Drift, it redefined what “good value” looked like in a lithium battery. People suddenly realised they didn’t need to remortgage the house to get a seriously well-specced product.

The Drift delivered top-tier hardware at a fraction of the going rate, and it quickly became a bit of an off-grid cult hero. But tech never stands still, and our engineers certainly don’t either.

Now we’ve taken everything we learned from the original Drift and pushed it further. Same ethos, same reliability, but with a near-complete internal overhaul. The result is sharper performance, cleaner integration and hardware that keeps pace with the demands of modern off-grid systems.

Let’s break down what’s changed in the Fogstar Drift Gen2;

1. A Smarter. Stronger BMS: From 250A to 300A

The original Drift delivered serious capability with its 250A BMS. Gen2 builds on that foundation with a more advanced, more capable system engineered for higher-demand setups.

Gen 2 features a next-generation 300A BMS designed to handle sustained heavy loads. If you’re running larger inverters or high-draw equipment, Gen2 gives you the headroom to do it confidently.

2. Accuracy You Can Actually Trust

Fogstar Drift Gen2 introduces 0.2A shunt accuracy on discharge, delivering significantly tighter and more reliable SOC readings.

This means no vague estimates, no unexplained jumps, just accurate data that reflects what your system is doing.

3. Active Cell Balancing for Better Long-Term Performance

Both Drift models are built with Grade A EVE prismatic LiFePO₄ cells sourced directly from EVE. We match and balance every cell prior to assembly to ensure each pack begins with optimal stability and uniform performance. Whilst the chemistry remains the same, Gen2 benefits from smarter cell management and monitoring, giving you a more refined and reliable system overall. This includes;

• Faster more consistent balancing
• Improved cycle life
• Greater overall efficiency
• Stable output across the entire pack

This single upgrade significantly enhances long-term reliability.

4. Premium EVE Cells. Same Trusted Quality

Both generations are built using Grade A EVE prismatic LiFePO4 cells. The difference in Gen2 isn’t the chemistry, it’s the optimisation of how those cells are managed and integrated within the system.

You get the same stability, safety and proven lifespan, now supported by a smarter design and refined power management.

5. Full Victron Plug-and-Play Integration

For many users, this is one of the most valuable upgrades. Drift Gen2 now provides full plug-and-play integration with Victron systems.

You gain;

• Simpler, cleaner installations
• Accurate battery-to-battery communication for consistent system behaviour
• Full data exchange between battery and inverter
• More reliable state-of-charge information across linked packs
• Smoother control and monitoring through Victron GX devices

Whether you’re running a single unit or a bank of linked batteries, the improved communication layer in Gen2 delivers a noticeably more refined and predictable system. Anyone building a Victron ecosystem will see the benefits straight away.

6. Hardware Improvements That Matter

Gen2 introduces several practical hardware upgrades designed to make installation cleaner and long-term use more reliable.

• A newly engineered and customised Fogstar lid
• Awesome Fogstar branded input covers
• Upgraded terminals for improved robustness
• A physical on/off switch for cleaner, safer installations

These refinements make the battery incredibly ‘installer-friendly’ and mechanically resilient.

7. The DNA Stays the Same

Some fundamentals didn’t need changing, for example;

• Heating - ensuring you can always charge your battery, no matter the weather
• Full support from our UK team
• Our robust 10-year warranty
• IP67 rating

Gen2 strengthens the formula without altering the principles that made the Drift a trusted choice.

Fogstar Drift Gen2. The Verdict

Gen1 set a new expectation for what a well-specced lithium battery should cost. Gen2 continues that approach with a more advanced battery solution that still avoids the inflated prices you’ll see elsewhere in the market.

You’re getting smarter electronics, stronger system integration, tighter accuracy and hardware refinements that genuinely improve real-world performance. All while keeping the Drift firmly positioned as the best-value battery in its class.

In short, Gen2 brings meaningful upgrades without moving into “boutique” pricing. It remains a high-performance, long-life solution built for all types of off-grid systems at a price point that makes far more expensive alternatives difficult to justify.

➡️ Check out the new range of Drift Gen2 Batteries here.