Got 12V devices you would like to leave running all the time

[Steve]

Then get one of these so you can leave it on and not have to worry about your battery:

http://store.yahoo.net/koolatrononli...12vbatsa1.html

[delbertinie]

sounds like a neat item, but when your batterry falls belows 11.5 volts, would'nt your inverters alarm sound most all of them have one.
doesn't really matter if the inverter is draining the batterry or a 12vlt aplliance right
dale

[the_experience03]

My inverters don't alarm until 10.5 volts or thereabouts and at that point no amount of ether is going to start the engine because it can't even kick one cylinder over the compression stroke. What's worse is that I've damaged the battery. Those devices are cool and make sense in some applications. So does a Battery Tender or a 45 watt solar panel though. I've seen them successfully used for operating a laptop or stereo, etc in a car when parked at a party, but the battery salesman part of me says that dropping a cranking battery to 11 volts is bad. The biggest limitation of that device is that it can only realistically handle about 120 watts of draw since the average 12 volt outlet in a car only has a 10 amp fuse on it.

[junkyardkid]

I got somethin kinda like that and it works great with my gas engine, i just try to start the motor as soon as it kicks off so the battery dosnt stay discharged. i run my whole bus through it