... apply for solar system. 3, wide operation temperature range. VRLA battery 2V500Ah: Application: new energy, telecommunication, banking, medical ... rate) 241mm*172m*331mm*366mm 31kg Free Characteristics of VRLA battery:1. Excellent safety performance: No electrolyte leakage, ... do have a normal open circuit voltage without leakage, batteries swelling or cracking problem after one-hour vibration. 4 ...