The Exide INVARED+ Range of tubular inverter batteries are designed with thicker positive plates and 20% more electrolyte to withstand power outage. This red tubular battery comes with a warranty of 36 months and requires very low maintenance. FEATURES OF EXIDE INVARED * More than 20% extra electrolyte which means lesser topping up frequency and better thermal management * Tubular technology * Minimum maintenance * Electrolyte level indicator * Suited for frequent and long power outages * Deep cycle design (800 plus cycles at 80% D.O.D.) Abuse resistant * Faster recharge *Operating sp.gr. 1.250± 0.005 at 27°C Type Capacity At C20 Dimensions L x W x H ± 3mm Weight ± 5% IR300+ 80 Ah 410 x 176 x 290 29.7 IR350+ 100 Ah 535 x 222 x 290 43 IR450+ 135 Ah 535 x 222 x 290 47.5 IR500+ 150 Ah 535 x 222 x 290 50.1