Equally, the BR1500MS2 remaining most contenders during the dust when it arrived to battery capacity, as it ran for 4 hrs at a 20 W load and 21 minutes at a 300 W load. The only competition that arrived shut were our top rated decide on plus the CyberPower CP1500PFCLCD (the latter was also the only real UPS to beat the BR1500MS2 in output, cranking