rocknrobn26 Posted July 13, 2011 Share Posted July 13, 2011 So during the power failure I ran out my LT batts in about 8 hours. I have a car w/ a 110V-100W outlet. I thought I could drive around and charge it up, but I looked up the specs on the transformer and it said 110v @1.6a. Using Ohm's Law: W = V x I I came up w/ 176 Watts or 76W too many. My cell phone was rated @ 0.6a so I figured it was safe at 66W. Did I do it right? Quote Link to comment Share on other sites More sharing options...
paulzale Posted July 13, 2011 Share Posted July 13, 2011 I think your math is correct, but am not sure that makes sense. I have a car charger for my LT that plugs into the cig lighter with no issues. I would think a laptop would've been fine to plug into a car 110v outlet as that is why they are there mostly, portable electronics that is. If it is too much draw it would only likely blow a fuse. Quote Link to comment Share on other sites More sharing options...
rocknrobn26 Posted July 13, 2011 Author Share Posted July 13, 2011 (edited) I think your math is correct, but am not sure that makes sense. I have a car charger for my LT that plugs into the cig lighter with no issues. I would think a laptop would've been fine to plug into a car 110v outlet as that is why they are there mostly, portable electronics that is. If it is too much draw it would only likely blow a fuse. I was thinking the same thing, but maybe the cigarette lighter has a higher amperage output to begin w/ and/or maybe the LT device trickles the current at a lower draw rate. Edited July 13, 2011 by rocknrobn26 Quote Link to comment Share on other sites More sharing options...
paulzale Posted July 13, 2011 Share Posted July 13, 2011 Maybe, not sure, I would actually give a shot, but I am known to have some "Oops's" every now and then. Quote Link to comment Share on other sites More sharing options...
rocknrobn26 Posted July 14, 2011 Author Share Posted July 14, 2011 Maybe, not sure, I would actually give a shot, but I am known to have some "Oops's" every now and then. FWIW... I talked to my electronic guy today. Seems like they put a wimpy inverter in the cars. Bottom line is the cigarette lighter is major beefed up wire wise. Anyway thanks for the info. Quote Link to comment Share on other sites More sharing options...
Pope Flick Posted July 14, 2011 Share Posted July 14, 2011 W= VxAmps (west Virginia) - what is I? Quote Link to comment Share on other sites More sharing options...
rocknrobn26 Posted July 14, 2011 Author Share Posted July 14, 2011 W= VxAmps (west Virginia) - what is I? I = Amps (current) Quote Link to comment Share on other sites More sharing options...
Pope Flick Posted July 14, 2011 Share Posted July 14, 2011 I = Amps (current) Then my understanding is that your math is correct, but as to the physical outcome I'd have no idea. Quote Link to comment Share on other sites More sharing options...
paulzale Posted July 14, 2011 Share Posted July 14, 2011 Sounds like he might let the smoke out, which isn't the problem, it is trying to put it back in Quote Link to comment Share on other sites More sharing options...
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