Exide InvaMaster IMST1500 150AH Inverter battery is worth for Money spent because it can give 4.5 – 6 Hours Backup on 400 – 275 watts Load. For using 1 fans, 2 lights and 1 TV (LED/LCD) with Exide IMST1500 the expected backup is 4 - 4.5 hours. Not Installation charges Extra Depent on Work.
