Feel free to call us at the number above, or email us Batterywarehouse@verizonnet Not sure what you need? I've read that a 1500 watt microwave draws about 125 amps, but that's really all I could tell you I use THIS charge controller and I can tell you even after using the microwave for over 4 minutes I never have seen the meter on the charge controller dip below 12 volts or affect the other devices on my 2500 watt power inverter Any ideas on how I could find out the amperage Ssl 1500 watt amp