Exide 6LMS150 -150AH - SOLA-TUBULAR Battery for Inverter, Solar System, UPS. !! 5 Years Warranty. Average Life 7-10 Years. India Top no 1 brand recognized for Quality and Performance. C10 battery, that means compare to c20 battery, it gives extra backup, Low self discharge 1200 cycles at 80% DOD, 3000 Cycles at 50% DOD, 5000 cycles, at 20% DOD, DOD is Depth of Discharge, Battery life is measured with cycles, when the battery is discharged up to 80% it will take 1 cycle, so you will have remaining 1199 cycles, so likelywise all the cycles are being used up to Zero. This comes with 3 years warranty Average Life is 7-10 years, compare normal tubular battery where it comes 5-7 years.  Tubular Positive Plates made in high pressure HADI casting machine which makes longer life with high reliability. Low topping up frequency. Made up of Special alloy in grids and pastes results very low water loss. Provides extra life of battery because of Special non-woven gauntlet for positive plates. Sola-tubular batteries are approved by MNRE.