RE: Solar power project step 2, battery test with inverter
nice post! and good discussion to have here..
Its interesting to note as you say that MANY LED screen DO run on 12v DC.. They usually have an external transformer to do that for you.. Therefore with a LITTLE hacking you can adapt some screens to take a direct 12 VDC from a battery.. The screens that have an external transformer brick are EASY to do this with.. which is most of them i THINK
i havent tested this though so maybe use an old screen to test this idea with.. the only issue i see is that if you have too much charging you might have a voltage of 14V ish .. which MAY be fine but might not also.. TO avoid that problem you can use a solar charge controller with a stable 12V DC Output.. i have one,, its was very cheap and i use to give my LEDs an easy life..
oh and...
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Good idea, I actually do have a LED screen that I'm not using and is quite old (by computer standards) so I might try that.
I have a battery regular already but I'm not sure exactly what it does, I think it just cuts off power draw when it decreases below a certain voltage threshold, I don't think it actually keeps voltage consistent. I'll see about getting one of those if not, thanks for the tip.
yeah im guessing your right.. they just cut off low and maybe high voltage and load.. most charge controllers dont provide a constant 12V..so i was very pleasantly surprised to see this one does.. im sure it will help keep things happier.. as electronics CAN be quite fussy about voltage.. especially IF you take off the transformer that used to do that job..
good luck mate!
Hopefully I can steer clear of voltage mishaps! Thanks, the testing continues.
yep! id say if its not charging then there no risk of over voltage.. undervoltage will most likley be just a switch off situation rather than burn out