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Fogstar Drift Gen2 12V 628Ah
The Fogstar Drift Gen2 12V 628Ah is built for ultra‑high‑capacity 12V systems where you want a single, serious battery rather than a tangle of smaller units. It delivers a huge usable energy store, a 300A smart BMS, highly accurate current sensing and low‑temperature protection, making it ideal for large camper builds, live‑aboard boats, off‑grid cabins and high‑demand 12V solar storage.
Key features
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12V, 628Ah (approx. 8,038Wh) LiFePO₄ for very large 12V banks.
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Grade A EVE MB31 LiFePO₄ prismatic cells for extreme cycle life (8000+) and stable performance.
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300A smart BMS with active cell balancing and full protection (OV/UV, OC, SC, low‑temp charge).
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High‑accuracy internal shunt (around 0.2A resolution) for tight SOC and amp‑hour tracking.
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Integrated heater plus low‑temperature charge lock‑out for safe winter operation.
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Bluetooth monitoring via Fogstar Drift app (voltage, current, SOC, cell voltages, temps, alarms).
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IP‑rated enclosure and M8 terminals for marine, vehicle and off‑grid installations.
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Supports up to 16 batteries in parallel within Fogstar’s connection limits.
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Straightforward integration with Victron lithium profiles and GX monitoring for inverter/charger systems.
FREE DELIVERY TO MOST UK MAINLAND ADDRESSES - PLEASE CONTACT US TO CONFIRM.
Further details
Internally, the Gen2 628Ah uses advanced EVE MB31‑class LiFePO₄ cells configured as a high‑capacity 12.8V pack with a flat discharge curve and very high cycle life at typical leisure depths of discharge. The upgraded 300A smart BMS continuously monitors individual cell voltages, pack voltage, current and temperature, applying active balancing and cutting charge or discharge if parameters move outside safe limits.
An accurate internal shunt lets the BMS calculate state‑of‑charge and energy throughput realistically, which is crucial when designing and operating large inverter systems or multi‑day off‑grid setups. The built‑in heater and low‑temperature charge protection allow safe charging in cold environments, while the sealed, IP‑rated case and M8 terminals are well suited to marine lockers, under‑bed installs and external battery compartments.
In Victron systems, appropriate lithium charge voltages and GX‑based control make this “big single pack” behave like a clean, predictable 12V bank that can comfortably support powerful inverters and high DC loads when correctly fused and cabled.
System Configuration Options
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Connect up to 16 batteries in parallel to increase total capacity
