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Old 07-02-2020, 11:38 AM   #1
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FYI: switched 3.0A dual USB port

I have no experience with this but am ordering one. I like the on/off switch. That means I don't have to add one to prevent parasitic drain.

I don't know how efficient high-amp USB chargers are, relative to lower-amp versions. It may waste a few amps. Even if so, the difference in charge time for a phone is worth it to me.

ReviewMeta gives it a 4.8 score based on 51 reviews.

https://www.amazon.com/dp/B082PNLMDS

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Old 07-02-2020, 11:49 AM   #2
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Looks pretty cool! Just to make sure, you do realize that is not a "cigarette lighter" plug in, but a hard wire in dash mount?
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Old 07-02-2020, 01:18 PM   #3
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Originally Posted by NavyLCDR View Post
Looks pretty cool! Just to make sure, you do realize that is not a "cigarette lighter" plug in, but a hard wire in dash mount?
Yes. I'm actually buying this one, a duplex fixture with a switched double USB and a standard 12V accessory outlet. It includes a fused connector.

I have the remnants of a three hole plate from which I removed something in the past. It has a 12V accessory port. I'll move the two from the new purchase to the three-hole plate, the result being two 12V accessory plugs and a double USB port.

I plan to mount that near the headboard of our bed to power our two CPAPs and to charge our phones near our bed. I may have to fuse the accessory ports separately. I'll make sure the wire feeding it is has sufficient capacity.
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Old 07-02-2020, 01:26 PM   #4
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That should work just fine.

I do find it humorous they chose to use a photo of a finger touching the on/off button that makes the outlet look HUGE (in comparison to the finger) or that is Tinkerbell's' finger!
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Old 07-03-2020, 09:56 PM   #5
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You do realize, if that switch is an electronic switch instead of a mechanical switch, there wil be a small current drain to run the switch monitoring electronics.
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Old 07-03-2020, 10:28 PM   #6
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You do realize, if that switch is an electronic switch instead of a mechanical switch, there wil be a small current drain to run the switch monitoring electronics.
I'll test it with an ammeter. If what you suggest is true, and if the current is enough to be concerned with, I have a bunch of extra switches I bought for the purpose of killing parasitic drains. I will not have accomplished my goal of not having to install a switch, but it's a better USB charger than I have now. And, the switch probably cuts most of the power consumed by the charger itself.

Edit: I had not thought of that and appreciate your pointing it out.
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Old 07-04-2020, 06:16 PM   #7
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One thing to be careful with - some older devices aren't made to be used with "fast charge" USB ports. My old (10 years+) Kindle is one example - it needs a slow drip according to Amazon.
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Old 07-04-2020, 06:41 PM   #8
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One thing to be careful with - some older devices aren't made to be used with "fast charge" USB ports. My old (10 years+) Kindle is one example - it needs a slow drip according to Amazon.
The battery still works on that thing?
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Old 07-04-2020, 08:18 PM   #9
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The battery still works on that thing?
Amazingly and quite well! Kindle Touch that I got in 2011 - so technically only 9 years old Some days you just get lucky!
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Old 07-04-2020, 09:47 PM   #10
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The switched USB charger in question isn't a "fast" charger by any stretch of the definition. It's only 3.0A total, but that's faster than the standard ones in the trailer, I think.
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Old 07-04-2020, 09:51 PM   #11
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Originally Posted by chriscowles View Post
The switched USB charger in question isn't a "fast" charger by any stretch of the definition. It's only 3.0A total, but that's faster than the standard ones in the trailer, I think.
Correction: one port is 3.0A, the other is 2.0A. So, faster than many but not extremely fast, compared to newer types.
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