The titan of energy storage has arrived. EVE Energy‘s revolutionary “Mr. Big” battery – officially designated as the S556H201 but nicknamed “Mr. Giant” when scaled up – is transforming how we think about energy storage. This beast packs a 628Ah capacity and 2.009kWh of energy into a single cell. Let’s be real: that’s massive.
This isn’t your phone’s wimpy little battery. Each cell weighs over 11kg and measures 206.7 × 352.2 × 71.7 mm. Not exactly pocket-sized. But who needs small when you can have powerful?
The specs are frankly ridiculous. These cells can handle 8,000 nominal cycles, with real-world testing showing over 12,000 cycles. That’s decades of daily use. With an internal resistance of ≤0.25mΩ, power flows through these things like water down Niagara Falls.
EVE’s production capacity is just as mind-boggling. Their 60GWh super plant spits out 1.5 cells every second. One production line pumps out 1GWh in just 5 days. That’s enough for 40+ massive 5MWh containers daily. This impressive manufacturing scale could help address the storage challenges that have traditionally limited renewable energy adoption.
The technology inside isn’t your grandpa’s battery either. CTT ultra-large cell tech, 3rd generation stacking, NTP ultra-safety features, and even “digital twin” virtual factory tech. Whatever that means. Sounds impressive though, right?
These monsters are already shipping to Australia and Europe. The first units hit the road September 10th. Early deployments have been humming along for 8+ months with no issues. The battery’s Lithium Iron Phosphate chemistry ensures exceptional safety and longevity in these large-scale deployments.
For utility companies, these batteries are game-changers. They slash lifecycle costs by 30% and operate at >95.5% efficiency. Perfect for grid storage, commercial applications, and pairing with solar and wind.
What makes this different? Scale. When configured into the full “Mr. Giant System,” you’re looking at 5MWh packed into a 20-foot shipping container. The battery was unveiled at the China International Energy Storage Exhibition, marking a significant milestone in the evolution of energy storage technology. The whole setup weighs 45 tons.
Big cells, big power, big revolution. EVE Energy isn’t playing small ball anymore.
References
- https://www.evemall.eu/power-battery/prismatic-lfp-cell/mb56
- https://www.evlithium.com/lifepo4-battery-news/eve-energy-new-generation-mr-big-lf560k-release.html
- https://www.evemall.eu/power-battery/energy-storage-system/eve-s556h201
- https://www.energy-storage.news/industry-updates/eve-energy-achieves-mass-production-of-first-600-ah-large-battery-cell/
- https://www.ess-news.com/2025/09/22/eve-energy-claims-worlds-first-utility-scale-deployment-of-628ah-cell-batteries/
- https://www.energy-x.org/news/eve-energy-mr-big-ultra-large-capacity-cell-mr-giant-5mwh.html
- https://www.evebattery.com/en/news-1855
- https://www.marklines.com/en/top500/eve-energy
- https://www.scribd.com/document/735650460/20240205-Mr-Giant-Mr-Big-EVE-Energy
