Recommended3 BHK HouseBattery Backup Time2 to 4 Hours Inverter Model & WaveformExide 1050 Sinewave Output (copper Transformer)Battery Model & CapacityExide Invamaster IMTT 150AH Tall TubularInverter Warranty2 Years On-site warrantyBattery Warranty54 Months (36 Months Replacement + 18 Months Pro-rata Warranty)DeliveryWithin 12 hours