Inverter: continuous power consumption? - Page 2

santisurf · 05-26-2006, 01:50 PM

Quote: Originally Posted by nkotch

Yea, the whole point of using a relay/switch is cut the battery power going to the inverter when you turn the car off..... All inverters I have seen draw a little power even when off, so cutting the power to it (by a switch/relay) will of course keep it from draining the battery.

ok so correct me then if im wrong.... i made a little funky diagram

Battery----Block Distributer----Relay Switch-----Inverter---Shutdownand start up controler------CPU
|-------- & Amps-----Speakers

Anyone Agree with me?

also lets post some good Relay Switch and Shutdown and Start up controlers that would be of good use. (for us noobs)

clever · 06-22-2008, 06:18 PM

my inverter will arc at the plug some when connected slowly even if its off
from that and several other things i suspect theres a massive capacitor on the input terminals(to filter the power) and the cap draws alot of current when first connected

the cap could continue to draw power even when the switch is 'off'

though i dont think it draws much(on my model) i left a laptop RUNNING on the inverter overnight (cpu idle at 600mhz) and it didnt kill the batery(still started fine)

i should look into loging the current/voltage over time to try and figure out how long it would last, and switch to a dc->dc laptop suply

FusionFanatic · 06-22-2008, 08:48 PM

it's a good thing you revived this 2 year old thread...

...we were all wondering what happened to it

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