12v charging, powering? - Page 3 - Fiberglass RV


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Old 08-25-2015, 03:54 PM   #29
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Quote:
Originally Posted by Bob Miller View Post
The front of the device states 120Watts Max All Devices, that's 10 amps.
So much for advertising copy (again).
Rats.
Apart from the non-truth in advertising, wouldn't this unit be useful for my needs? There seems to be a lot of customer satisfaction, which I didn't see with several other combo units.
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Old 08-25-2015, 04:43 PM   #30
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Yep, it looks fine, but they always work more reliably if you hard wire them if possible.
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Old 08-25-2015, 06:10 PM   #31
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Yep, it looks fine, but they always work more reliably if you hard wire them if possible.
I'm not in total agreement (or disagreement for that matter) with this. I think hard wired is less inclined to have loose connection or get partly unplugged so as to not really charge the devices plugged in but....

I tend to be a little reluctant to hard wire after market "stuff" in. Now plugs themselves I'm good with, or normal infrastructure such as fantastic fan, water pump etc. all good wired in. Mostly I would do what Elle suggested use device such as she linked to as an extension cord.

Depending on camper make or model the best places to put 12 volt outlets from the standpoint of wiring them in may well not be the best place for all devices. I would say in our Scamp 13 the best spots for the outlets are the front face of the couch at the front or left side (dinette side)of kitchen base cabinet.

Extension cord arrangement would allow using an outlet on one end to plug in device at the other end or positioned extension block in the middle of the kitchen. Other floor plans may not favor this approach as much as ours would. I guess one could put a hard wired outlet at both ends too and then not find the device as useful.
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Old 08-25-2015, 07:27 PM   #32
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Interesting inverter; outlet positions

I'm still searching for the 12v socket of my dreams, and in the meantime came across this:

Amazon.com : KRI╦GER« 1100 Watt 12V Power Inverter Dual 110V AC outlets and Dual USB 2.1A car dc 12v to 110v ac adapter laptop charger notebook adapter dc charger ac adapter iphone cellphone usb charger UL CSA MET KR1100 : Electronics

I wasn't planning on doing an inverter right away, but this does look like a very reasonable price, and the reviews again seem to be very positive.

UPDATE: Just noticed it's a *SINE* inverter, which RogerDat recommended, and it's 1100 watts... RD sent me links to 300 watt items. So the price on this for what it provides seems very good, except how would I know if it's *pure* sine wave and not *modified*?

UPDATE #2: Discoveerd via customer comments that is a modified. Despair.

Quote:
Originally Posted by RogerDat View Post
Depending on camper make or model the best places to put 12 volt outlets from the standpoint of wiring them in may well not be the best place for all devices. I would say in our Scamp 13 the best spots for the outlets are the front face of the couch at the front or left side (dinette side)of kitchen base cabinet.

Extension cord arrangement would allow using an outlet on one end to plug in device at the other end or positioned extension block in the middle of the kitchen. Other floor plans may not favor this approach as much as ours would. I guess one could put a hard wired outlet at both ends too and then not find the device as useful.
RogerDat, I have seen some outlets in the most inconvenient places! Imagine leaning up against a 12V plug plugged into a socket while trying to wash dishes. And right now in my LilB, the three AC outlets are all positioned one in front of the sink, and one under each front and rear upper cabinet. So there is that leaning up against a cord problem, and then with the others we enjoy the pleasant visual of cords hanging down, or draped over our shoulder as we attempt to use the computer.

What possible purpose could there be for an outlet under these cabinets? I would much prefer outlets in the lower bunks, or at least on the SIDES of the kitchen cabinets.

BTW, this multi-tasking extension charger thingy -- it might become less necessary if we install several 12v sockets, OTOH, being portable it could also be used in the TV.
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Old 08-26-2015, 10:00 AM   #33
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I have a co-worker that uses one of those extension thingies to feed power to the kids devices in the rear seat.

Not being able to effectively run wires in the walls of a scamp behind the elephant hide does create some shall we say challenges. Don't neglect going down through the floor and coming back up where the outlet is desired. I'm looking at putting one in the bottom front of the closet, wheel well takes up most of that space so really only good for losing stuff down there anyway. I would probably run that wire down through the floor under the sink where the fuse box is and then come back up inside the closet.

The reason for outlets in the upper cabinets above the kitchen is easy. Both 12 volt and 110 volt run there already, or at least close the 110 volt fluorescent light over sink only needs to have a wire spliced in and run an inch or so to get in the upper cabinet. Heck the original light had a 2 prong ungrounded outlet. Only good for phone charger in this modern grounded plug day and age. There are also 12 volt lights on either end so splicing a line on for a 12 volt outlet is not too hard.

Man did I just date myself with calling it a "fuse box" or what?

Does anyone make electric boxes for the 12 volt outlets? If not in a wall I worry about something hitting the contacts and shorting them out.
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Old 08-26-2015, 02:59 PM   #34
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Date yourself? LOL! I still ask my kids if they have a *disk* for the computer!

While I was digging for fun electronics, I came across this:

niceeshop(TM) Mini 2 Wire DC 4.5-30V Blue LED Panel Digital Display Voltage Meter Voltmeter - Voltage Testers - Amazon.com

For that price, I ordered it to try it out. I think visuals like this will help me get my head around the math involved in watts and amps, and help with determining what uses how much.
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Old 08-26-2015, 11:07 PM   #35
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You can also look at Blue Sea. Pricy but nice


Sent from my iPad using Fiberglass RV
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Old 08-27-2015, 12:54 AM   #36
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http://www.amazon.com/Digital-Voltme...0J2Y52A49G3Q7E

Just picked up and mounted these throughout the scamp. Actually ordered another one. It's simple to tap into the 12v and is super convenient to have the usb ports. The voltage meter is nice as well. I wired in a rocker switch for when not in use as to not have a phantom load.
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Old 08-28-2015, 03:40 PM   #37
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Pure sine inverter

Does this one look too good to be true (price-wise)? There are no reviews yet.

Amazon.com : PowerTech ON Advanced Technology PURE SINE WAVE Inverter 1000W Cont/2000W Peak, 12V DC - 120V AC w/ Black & Red Cables w/Ring Terminals, Remote Switch, Protection System & 3 Output Sockets - PS1002 : Car Electronics
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Old 08-28-2015, 04:21 PM   #38
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We have something very similar to that in our Scamp. It looks identical, but it's in storage so I can't check the brand. I will say, that it is located on the sofa side of the cabinet and it is a very real PIA to turn the sofa into a bunk because it sticks out so far the cushion has to be removed in order to flip the back of the sofa into position. Just an FYI as you are deciding on where to place it

Also, we have used our inverter once. It took about 6 hours to charge an HD Nook tablet.
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Old 08-28-2015, 04:24 PM   #39
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Emily, do you know the wattage output of your inverter? (I realize you said it's in storage, but just in case you know off of the top of your head!)

Did you notice any significant drain on your battery? Do you have any charging capability *for* the battery when you're off grid?
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Old 08-28-2015, 04:31 PM   #40
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Quote:
Originally Posted by Ellpea in CA View Post
Emily, do you know the wattage output of your inverter? (I realize you said it's in storage, but just in case you know off of the top of your head!)

Did you notice any significant drain on your battery? Do you have any charging capability *for* the battery when you're off grid?
I *think* there is a booklet in the camper. I'll go over there tomorrow and see what it says because now I'm curious. We actually charged two Nooks, for a total of about 12 hours, and continued to use the battery after (but only for the little lights on the cabinets in the evening before bed, so not much). We were out for ten days and let the kids charge them on about day six, to use on the loooong drive home.

The previous owner has us all set up for solar, with all of the wiring and things needed to install it- and included a LOT of paperwork and wiring diagrams, which is why I think there is info on the inverter. It all seems so beyond us, so currently we haven't even looked at it at all. I'd eventually love to be able to use solar, so some day! He did a lot of mods to the electric, with cigarette lighter type adapters in six places along with cable and a radio
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Old 08-28-2015, 04:39 PM   #41
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Wow, I'm deciding those 12v sockets are like gold. I have some ordered, and will put in at least two.

We also have a solar panel (35w) which I haven't got hooked up yet. I think the only battery drain I would have would be (like you) the lights in evening and charging. I would only need about 4 days of battery life, so maybe with the solar panel I'll have enough ooomph
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Old 08-29-2015, 10:28 AM   #42
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Ok. Ours is a Die Hard 425 watt power inverter. Reading through the manual, it says it can charge 60 watts for 3-5 hours before draining the battery. Not sure what the Nook tablets charge at, but we got significantly more hours than that.
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