Thread: Extra power options?

You don't need any extra power for "a short while". Check out the thread on power consumption here, people are reporting 2.5 Amps on average. At that rate, you've got at least a few hours before you drain your battery.

If you just want something to shut off power automatically after some delay, do a search here on "shutdown controller" or "auto-off" or "delay circuit". Or just use my circuit.

And a mighty fine circuit it is.

I have a Honda Civic w/ stock battery and alternator, my system draws 6 amps.

I have never run my battery down.

I would recomend http://www.dschmidt.com/autooff.html

I worried about that when i had an inverter.. with the Arise DC/DC PSU, it has a varable input of 8 - 16 volts.. So the drop in voltage is not a big deal to my box unless you have to crank the engine for a while.

I have not gotten my dschmitt box yet, (on order though) when I get it, i plan to add a capacitor w/ diode onto the accessory line, this will allow me to change the wait time to (my goal) 12 minutes or so.

I recoment oms circuit, so simple yet affective. i built mine for about $au5 high finances indeed! i get about 8 mins running time after i have turned off the key.