GoodWe’s BAT-S Series, available in 25.6 – 56.3kWh, is a high-voltage lithium battery specially designed for small commercial and industrial (C&I) applications with superior performance.is a high-voltage lithium battery designed specifically for small commercial and industrial (C&I) applications. Its modular design supports stacking 5 – 11 battery packs per system, enabling highly flexible capacity expansion to suit diverse project requirements.