Overcurrent protection in valve-regulated sealed lead-acid batteries: Multi-level protection reduces the risk of fire in data centers
2026-06-18
Fire hazards in data centers and energy storage facilities often arise from battery overcharging, short circuits, and internal overheating. Sealed, valve-regulated lead-acid batteries reduce safety risks at source with a multi-layered protection system. The first level is body protection: the entire unit is made of UL94-V0 fire-retardant ABS plastic, making it difficult for an open flame to sustain combustion, and the thicker body softens shocks and puncture damage. The second level is electrolyte protection: AGM or colloidal electrolyte without free liquid, preventing large-scale leakage of acidic liquid in the event of damage.
The third level is internal electrical protection: the positive and negative electrode separators are insulated, and the terminals have built-in protective insulation covers to prevent accidental short circuits from metal tools. The fourth level is overpressure protection: the built-in one-way safety valve automatically relieves pressure when the internal pressure of the charging gas exceeds the permissible limit, and automatically closes when the pressure drops, preventing the body from deformation and cracking. Level 5: Material Safety Optimization: The low-emission lead-calcium alloy grid significantly reduces the release of hydrogen and oxygen during charging, reducing the likelihood of the accumulation of flammable and explosive gases.
Before leaving the factory, the product is tested for recharge, compression and heat/cold temperatures, eliminating the risk of fire or explosion under normal operating conditions in typical outdoor data centers and energy storage systems. Scheduled maintenance only requires monitoring voltage and internal resistance; There is no need to open the cover or contact the internal element, making operation safe and accessible. With their proven and safe design, valve regulated lead acid batteries have become a long-established, standardized energy backup storage product for communications, power and data centers, backed by comprehensive industry safety standards and suitable for a variety of manned and unmanned data center scenarios.
