This week i received my Opus powersupply. My computer had become unstable and would lock up occasionally due to the heat building up in my trunk. One way to cut down on the heat will be using a computer power supply that runs off of 12VDC. This is much more efficient then going from 12VDC -> Inverter -> 120VAC -> Conventional Computer Powersupply -> DC power for electronics in computer.
Inverter is about 90% efficient and regular ATX power supplies are 70%. If you do the math by saying your computer power requires 150W.
150W / 0.70 = 214 W -> need 214W from the inverter.
214W / 0.90 = 237W -> battery needs to supply inverter with 237W
Opus Power supply is about 90% efficient.
Total Battery Watts using an Opus Power supply = 150W / 0.90 = 166.66W
Therefore, if we assume that our computer requires 150W then we'd be saving about 71W of power which doesn't have to be dissipated as heat (recall energy is neither created nor destroyed... so the energy is dissipated as heat).
When i set my computer's bios to "Suspend Mode = 20min" my computer locks up at random times.