Exide InvaTubular batteries are next generation Tubular battery, which are designed to withstand long and frequent power cuts. The ultimate tubular batteries especially designed with thick tubular plates are best suited for areas with frequent power cuts. These long lasting batteries have 30% more Acid volume per ampere hour than ordinary tubular batteries. Exide InvaTubular batteries can also withstand over charge better. Its superior features have made it the most demanded inverter battery.