Anyone know of an easy charger for cell phone in Scamp? - Page 2 - Fiberglass RV


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Old 05-26-2015, 02:07 PM   #15
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Name: Jim
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How about a little portable solar panel, like this:

http://www.amazon.com/Solar-Charger-...le+solar+panel
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Old 05-26-2015, 02:20 PM   #16
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I think my math came out a little different.
.08 amps x 24 hours x 12 days = 23.04 amp hrs. Shouldn't kill off a group 24 battery
BUT.... as you mentioned, leaving any device, like a battery charger, connected is a different issue, it will draw a lot more than .08 amps.
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Old 05-26-2015, 03:09 PM   #17
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You guys have solved my mystery drain! Several months back I installed a Blue Sea dual USB outlet and a cig lighter receptacle on the outside of our Scamp. I notice a small drain on the Tri metric monitor and had not associated the coincidence.
Thanks
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Old 05-26-2015, 04:43 PM   #18
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Originally Posted by Bob Miller View Post
I think my math came out a little different.
.08 amps x 24 hours x 12 days = 23.04 amp hrs. Shouldn't kill off a group 24 battery
BUT.... as you mentioned, leaving any device, like a battery charger, connected is a different issue, it will draw a lot more than .08 amps.
I'm confused, which is not unusual these days. I think I missed a post or two. Where did the .08 amps come from? I thought the Blue Sea draw was 15 milliamps or .015 amps or in my case with two -- .030 amps. Math class was a long time ago.

John
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Old 05-26-2015, 06:58 PM   #19
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I was using my numbers from Post #10, I guess that they are different from the others.
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Old 05-26-2015, 11:10 PM   #20
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Did I miss something? We have a couple of 12V cigarette plugs in our trailer and use regular car USB plugs to charge cell phones and such. Cheap, simple, effective.


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Old 05-27-2015, 06:15 AM   #21
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Originally Posted by Denece
Did I miss something? We have a couple of 12V cigarette plugs in our trailer and use regular car USB plugs to charge cell phones and such. Cheap, simple, effective.

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I did the same thing. There is no parasitic draw if you unplug the charger. It allows for 12 volt use when you are not charging. And because these chargers use more energy than they deliver, they can get quite hot. I'd rather have the device in the open. Raz
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Old 05-27-2015, 06:39 AM   #22
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I was using my numbers from Post #10, I guess that they are different from the others.
Sorry Bob, I missed that post. Thanks for the clarity.

Red-faced,

John
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Old 05-27-2015, 07:10 AM   #23
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If you are talking about my math, it was only meant as an example of current draw in general, and not specifically for any device. the bottom line is I think that installing anything that constantly draws without a means to switch it out when not in use is a bad idea. The simple 12V outlet is great. I do think having an easy readout of the battery voltage is important and they draw so little, that might be the exception.
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Old 05-27-2015, 03:14 PM   #24
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P. raz, some people just will complicate things, won't they?


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Old 05-28-2015, 10:39 AM   #25
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y'all are going to think I'm really lame, but I have decided to go with one of those lipstick sized batteries that holds about one charge for a cell phone. That should get me through my long weekend camping needs (as long as I remember to charge it up!)
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Old 05-28-2015, 12:33 PM   #26
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That's not lame at all, that is smart. I have one that gives my phone about three full charges and I can't believe how handy it is. The best thing is if your phone is close to dead you can still take it with you, but charging!
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Old 05-28-2015, 12:46 PM   #27
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y'all are going to think I'm really lame, but I have decided to go with one of those lipstick sized batteries that holds about one charge for a cell phone. That should get me through my long weekend camping needs (as long as I remember to charge it up!)
Not lame. Great for short trips or charging in the TV on longer trips. Try to find one with lithium ion batteries. They hold a charge for much longer. If the description doesn't say its probably not lithium ion. They cost a bit more but are much better.

John
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