Picked one up last week at this price...very nice setup for my needs. It uses a cord, so doesn't block multiple outlets, and it's just long enough to stick it somewhere more convenient than right on a plug or power strip.
A 15A charger at 5V would draw 75 watts, plus a little extra (to allow for not being 100% efficient). Round it up to 120 watts to make the math easy and that's one amp at 120V. You can put a whole fleet of those on a 15A breaker.
usadaytrader said: Okay I am confused. I thought a high demand device would just charge slower in a low amp USB port. I thought the danger was plugging a low demand device in a high amp USB port. No?
Rated means it is maximum output amperage the circuit may operate at. If you plug in a device that require 500mA (0.5A) device to a plug that is RATED for 2A (2000mA), the negotiated or established current flow through the circuit would be the maximum the device asked for, for example 500mA (0.5A).
If you do the other way around... well most of the devices these days have a protection, which means if both devices supports it, the circuit will only operate at the lower maximum rated amperage.
So don't worry, just don't plug a device that needs more than what the port is rated for or you might experience the blue smoke.
Then either this protection has long since been built in to every device on the market, or I'm the luckiest guy in the world. I take care of charging 12-15 random devices that charge over USB and other than being aware that some chargers are rated higher than others and charging time might vary because of this, I've never paid a bit of attention to what I've plugged these things in to. They either charge or they don't, but I've never fried a device by doing this and I kind of scoff at the idea of it happening.
Put another way, looking at the Amazon ratings, there's less than no chance that you're going to fry your device because you plugged it into the "wrong" USB port of this Anker charger.
tooloud said: Put another way, looking at the Amazon ratings, there's less than no chance that you're going to fry your device because you plugged it into the "wrong" USB port of this Anker charger. Agreed. But I've had a charger fry up. A cigarette lighter plug charging a camera that pulled more than the rated output. It happened in a little plane and produced RF noise that drowned out my radios. Later I found a heap of melted plastic instead of the charger. I know of others that had this happen to them also. I now use brand chargers in the plane only.
I couldn't stand the white apple look so cancelled. Ended up with a black battery pack instead http://www.amazon.com/dp/B009V5X1CE/ for $25 AC. The stupid white version is more expensive. Anyway it's extra ports and extra juice for power outages. Good quality stuff.
Monkeybiz said: I couldn't stand the white apple look so cancelled. Ended up with a black battery pack instead http://www.amazon.com/dp/B009V5X1CE/ for $25 AC. The stupid white version is more expensive. Anyway it's extra ports and extra juice for power outages. Good quality stuff.
I have this same exact RavPower external battery and love it.
Reposting an informative tidbit from Probedude on another deal forum:
"At this price point putting individual current limitations on a per port basis would raise the BOM needlessly. The only reason some devices work with some chargers and not others is how the D+/D- lines are set up.
In regards to this Anker product, I just tested this for you by putting a 2.4A load on each of the 5 ports on the Anker individually (not simultaneously) for 2-3 mins each. Discharge curve looked identical for all 5 ports (started at 5.02V, drooped to 4.83V). All 5 ports could drive a 2.4A load no problem. Nothing special about any of them to limit them to what Anker says the ports can do.
In summary the Anker can charge high current on any of the ports, at least as high as the Wagan product. Anker however has tailored the D+/D- pins on certain ports for products that are different than others when it comes to figuring out what can be sourced from a USB port for charging purposes. I don't see that Wagan has done this.
(FWIW, I do not work for Anker - I just test things, it's what I do.)"
It's good that Probedude ran this test, but I'd say 2-3 minutes is too short. My charger survived several months before frying up. The main thing his test shows is that the charger does not limit the current of some ports to a lower value than others. Whether it will survive the larger than label current is another question. I'm placing mine where it's unlikely that it can start a fire.
Got mine a few days ago. Really well packaged items which inspires confidence that if there were issues that pop up down the line, they'd take care of it. Loving the device so far for the simple fact of decluttering my charging area.
Awesome...thanks OP. IN for 2. Recently purchased this guy: http://www.amazon.com/Skiva-PowerFlow-Smartphones-Universal-Comp... . While it does a great job and is good for travel, it blocks the outlet and has a blindingly bright blue led light on it. While cool on vacation (night light for when you get up in the middle of the night and forget where you are), it is not good in the bedroom. Looking forward to trying this product.
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