Your battery load is 4 + kwh? However outside temperatur of my batteries is room temperature, but the core cell temp while it is loading is going up above 40 if I do not regulate load. At times I have over 7kwh load, while I restricted my load now to be only 4kwh to not overheat the batteries which will degenerate the lifespan of the batteries over years. SigenEnergy info SigenStor batteries are designed to toggle off (shutdown or restrict power) to protect the system when internal cell temperatures exceed safe operating limits, typically starting to restrict power around 40°C (104°F) and reaching a maximum operational limit of 55°C (131°F). lenergy.com.au +1 Key temperature-related behaviors include: Power Derating (40°C+): At temperatures higher than 104°F (40°C), the system may trigger power derating to prevent optimal, high-heat operation. Maximum Temperature (55°C): The official operating temperature range is -20°C to 55°C (-4°F to 131°F). If temperatures exceed this, the battery will likely shut down to prevent damage. Immediate Safety Shutdown: Although not explicitly stated as a single "toggle off" temperature, LiFePO4 batteries generally face thermal instability above 60°C (140°F), and SigenStor includes7 sensors per module to monitor for such scenarios. Automatic Heating (Below 0°C): If the cell temperature is below 0°C (32°F), the battery will not charge and will activate a built-in heating module, which may look like a temporary self-toggle into a "heating mode". Smart Energy Council +4 If the unit is constantly shutting down or "toggling," it may indicate inadequate ventilation or direct sunlight exposure, which can cause overheating
