The Exide InvaTubular IT500 (150Ah) is a tall tubular inverter battery that uses tubular plate technology for enhanced durability and long service life. Tubular plates reduce corrosion and material shedding, making the battery suitable for extended outage periods and frequent deep discharges common in Indian power scenarios. The battery has thicker plates and more electrolyte per ampere hour, which improves backup duration and cyclic performance. Typically backed by a 66-month warranty (48 months free + 18 months pro-rata, terms apply), this model is ideal for inverters ranging from 800 VA up to 2–3 KVA depending on load and usage.