Energy Storage and Battery Cabinet Cooling

Herays industrial DC axial fans cover the airflow range needed for residential, commercial, and utility-scale battery cabinets, with voltage options matching standard BESS bus voltages.

• HR1225 24V — 120×120×25 mm, 134 CFM, CE/RoHS. Suitable for residential 5–10 kWh ESS cabinets where one or two fans provide adequate cell-level airflow at acceptable noise levels.
• HR1225 48V — same platform at 48V. For LiFePO₄ and NMC packs operating on a 48V nominal bus — eliminates the need for a 12V auxiliary power rail entirely.
• HR1238 24V — 120×120×38 mm, 186 CFM. The deeper frame delivers higher airflow for commercial BESS cabinets with denser cell packing or higher continuous charge/discharge rates.

For anti-static requirements, contact Herays directly — we supply carbon-black-filled fan variants for sensitive environments. Tachometer output is standard on −SF connector models across the HR1225 and HR1238 series.

Why does battery temperature management matter more than in standard electronics enclosures? In conventional electronics, elevated temperature primarily affects component lifetime. In lithium-ion batteries, sustained high temperature (above 40–45°C) raises the probability of thermal runaway in compromised cells — the consequences of a cooling failure are therefore more severe than in most other electronic equipment.

Should the fan run continuously or temperature-triggered? Threshold-based control (fan on at 30°C, off at 25°C) is effective for residential installations. For commercial BESS with continuous charge/discharge cycling, PWM-controlled low-speed operation during active use typically provides more stable cell temperature uniformity than on/off cycling.

Contact Herays to discuss OEM fan sourcing for battery storage applications, including anti-static materials, tachometer output, and extended temperature ratings.