Your trusted stabilizer with model number FVR-1500 is a 1.5 kilowatts stabilizer that comes with a sub port that can be used to charge an external device.
See technical specifications below-
OUTPUT AC-220V MAX4.5A
INPUT VOLTAGE-100V-260V
FREQUENCY-50HZ
FUSE-15A
MODEL-FVR-1500
PHASE-SINGLE PHASE
LIGHT-LED DISPLAY