I don't have the model of the previous inverter. The one that I may be using in the near future is a Cobra Electronics CPI 1575 - 1,500 Watt Power Inverter. I'll list some specs below.
The heating pad was a
Sunbeam XLarge King XpressHeat 6 with Heat Settings. Sunbeam said the heating pad was not to be used with a power inverter but I'm sure that must be because the problems caused by the inverters. It doesn't make sense that a proper power inverter would not work fine with it.
I need to make whatever changes that I need to make to have this functional on the road.
Inverter Specs (This is one I own and MAY NOT BE THE ONE THAT CAUSED THE DAMAGE)
Specifications •
Continuous output power (1 hour) . . . . . . . . . . . 1500W
Surge rating (0.1 second) . . . . . . . . . . . . . . . . . . 3000W
Peak efficiency (12V – 1⁄2 load) . . . . . . . . . . . . . . > 88%
Efficiency (full load, 12V) . . . . . . . . . . . . . . . . . . . > 83%
No load current draw . . . . . . . . . . . . . . . . < 0.6A (12.6V)
Output waveform (resistive load) . . . Modified sine wave
Output frequency . . . . . . . . . . . . . . . . . . . . 58HZ – 62HZ
Output voltage . . . . . . . . . . . . . . . . . . . . . . 109V – 120V
USB output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input voltage . . . . . . . . . . . . . . . . . . 10.4VDC – 14.4VDC
Alarm voltage (unload) . . . . . . . . . . . . . . .10.2V – 10.8V
Shutdown voltage (unload) . . . . . . . . . . . . . 9.2V – 9.8V
Operating temperature range . . . . . . . . . . . . 0°C – 40°C
(32°F – 104°F)
Storage temperature range . . . . . . . . . . . . -40°C – 85°C
(-40°F – 185°F)
Protection . . . . . . . . . .Overload, short-circuit, overtemp,
reverse polarity, under/over voltage
Notes
All protection is automatically recovered.
To protect the battery, if the unit needs to be restarted
after low voltage protection, the voltage of DC input
should be above 12V.
To extend the life of the fan, it will stop when there is no
load. The speed of the fan increases as the load increases.
The unit is completely insulated in input and output for
added safety.