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Old 07-06-2014, 09:43   #16
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Charging Ipad... .how?

Because the DC convertor inside of the charging receptacle that converts to 5 VDC has a less than 2 amp limit. Go get a usb receptacle that says 2.1 amp on it and it will charge, you can get one almost anywhere, Walmart or even convince stores

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Old 07-06-2014, 09:48   #17
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Re: Charging Ipad... .how?

Originally Posted by lorenzo b View Post
just plug it into your inverter
mainesail has a good writeup on inverter inefficiencies when charging devices like iphones ipads.

iPad Charging - How Much Energy? Photo Gallery by Compass Marine How To at

iPad Charging - How Much Energy? Photo Gallery by Compass Marine How To at

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Old 07-06-2014, 11:08   #18
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Re: Charging Ipad... .how?

Originally Posted by nautical62 View Post
I had a plug on my boat, that my fridge ran off of, and I'm fairly sure that drew more than 4 amps, but my Ipad wouldn't charge off it. Same in my car.

I'm not an electrical expert. How would an unfused plug on a 15-amp circuit limit the available amperage to under 2.1 amps?
You have a USB fridge??

As mentioned, you need a "good" (2.1a) USB converter, which sell for about $10 at your local 7-11. The not-so-good ones will also work, slowly, if you turn the device off to charge.
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Old 07-06-2014, 11:27   #19
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Re: Charging Ipad... .how?

Originally Posted by Mike OReilly View Post
That's a nice looking unit belizesailor. Do you like the quality of the product? I'd be tempted to pull the connecting plug off and wire it directly into the panel.
Yes, I have used it for a season now just plugged in to a 12V outlet and am happy with it. So plan to wire it in. In fact, I plan to get a second one to install at the nav station. The housing is designed to accomodate fixed mounting.

I have found that with the ubiquity of USB charged devices now that we don't use the automotive style 12V sockets much, but need more USB ports (esp when we have guests aboard). So, I've ordered a couple of compact automotive to USB adaptors with dual USB ports.

And, as per spec, it does have one high output USB port. Have not tested specifically w an iPad, but it charges my Samsung tablet just fine, and spec says will charge an iPad. The underlying 12V circuit must of course be wired and fused to support the potential load of this adaptor. Mine was already so no problem.
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Old 12-06-2014, 20:01   #20
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Re: Charging Ipad... .how?

Originally Posted by Steve Lavigne View Post
Can't believe this thread went so long without mentioning this:

Dual USB Charger Socket - Blue Sea Systems

$20 or so. I bought a couple, but haven't installed them yet. Says it outputs a total of 2.1 amps at 5 volts. No idea if it ouputs 2.1 amps to one port for maximum ipad charging.
Ditto this one.

Everyone hates the cigarette plug. A very "dumb" connection basically, but we are stuck with it.

I just found a combo unit like the above - cigarette and 2 USB also around $20.

I charge my phones and iPad all over the place. Predominantly USB but also have tons of wall chargers and cigarette chargers.

It's our modern reality to "need to plug in" - USB is becoming the "go-to" connection.

I also have a small (800w?) 110v inverter - rarely used.
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Old 13-06-2014, 18:27   #21
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Re: Charging Ipad... .how?

We have four of the blue sea plugs... They work great. They will charge the iPads overnight or much faster during the day when the line voltage is pushed up by the solar and wind.

We put two plugs in the cockpit and two inside near our stereo cabinet.

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