Hey hey,.. so i know little about electronics, and i want to ask before i buy then fry something. First off, I'm in need of hooking this Liquid Level Control to a 12v deep cycle marine battery. But it's specs are:
Power Supply 12 v dc / 60mA
Maximum Load 5A
So i'm wondering if it can in fact be hooked directly to a 12V car battery, or will that fry it? If that WILL fry it, how would i go about powering it with the marine battery? I guess the max load figure scares me, since i know a car battery has more amp then that, but maybe thats the load the controller can handle to power devices, devices like below i hope?..

And Secondly, when powered, could such a device as that Liquid Level Controller pop open this noid?
http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_2564wt_836

I think so,.. but thought someone more familiar with electronics could be more sure before i click buy 

 

Read this.

http://www.electro-tech-online.com/content/222-amp-hour-fallacy-ohm-s-law-noobies.html

Second one this week!

ps, the link to the "noid" doesn't work.
and while you're at it, include a fuse. 5 amps should be about right. You don't want those battery amps getting loose with no limit at all.