Does this draw zero when idle like the Anker 40W 5V/8A 5-Port USB wall charger?
1648453
I can't answer your question now. But I do have a device that you plug things into and it tells you how much electricity it is drawing. I can try the charger with or without devices charging and let you know. But I really do like the charger and it has simplified our lives. When my wife understands how to use it, I know it is good!
1648454
The Photive 5-port USB charger draws 0.3W in standby mode (no load connected), according to my EUM-A1 Power Usage Meter Monitor
1648455
There are no led indicators, or other operational signals. The unit remains plugged in at all times, and does not generate any heat
1648456
YES. It draws no power unless a device is attached. Cables only attached drew no power. I used a Kill A Watt to confirm. Hope this helps.
1648457
Edward I couldn't say for sure but I have to say I am happier and happier the longer I use this charger. Think it is something you would be happy with. I also have noticed that it doesn't heat up.
633944
Revised Oct 15, 2014: I finally learned how important power supply is to wireless charging. I purchased an anker decktop USB power supply and realized the wireless charger on my desktop only performed correctly when using the higher (2 amp and higher) USB socket. Aha moment!I checked my power supply in the car and it was 1 amp. Purchased a 2.1 amp power supply for the car and this charger now works flawlessly! Duh! Its the power supply!First Review:I have been using with 5S for about a week. The 5S vacillates between charging and not charging. Makes a noise nuisance as it bleeps on and off charge mode. I don't think I can take it. Will be returning if I don't find a solution. Revised Oct 15, 2014: I finally learned how important power supply is to wireless charging. I purchased an anker decktop USB power supply and realized the wireless charger on my desktop only performed correctly when using the higher (2 amp and higher) USB socket. Aha moment!I checked my power supply in the car and it was 1 amp. Purchased a 2.1 amp power supply for the car and this charger now works flawlessly! Duh! Its the power supply!First Review:I have been using with 5S for about a week. The 5S vacillates between charging and not charging. Makes a... » Read More Revised Oct 15, 2014: I finally learned how important power supply is to wireless charging. I purchased an anker decktop USB power supply and realized the wireless charger on my desktop only performed correctly when using the higher (2 amp and higher) USB socket. Aha moment!I checked my power supply in the car and it was 1 amp. Purchased a 2.1 amp power supply for the car and this charger now works flawlessly! Duh! Its the power supply!First Review:I have been using with 5S for about a week. The 5S vacillates between charging and not charging. Makes a noise nuisance as it bleeps on and off charge mode. I don't think I can take it. Will be returning if I don't find a solution. « Show Less
1694168
Dear Aya,That's normal. The new charger blinks instead of having the steady red.After the full charge you will see a steady green light. Please contact our customer service if you have more questions.all the best,Team Tendlite
194257
It definitely doesn't. Apparently the best thing that happened to me was to lose the original charger and buy this one! The only quirk about it, though, is the fact that sometimes if you plug it up to a power strip with other things plugged into the power strip, the green light on it will start flashing. It means it's not getting enough wattage, so just plug it up to the wall and you're good! it's an amazing charger, and I use it to quick charge my phone too! Hope this helps!
316834
I don't have a current clamp for my multimeter to measure it, nor the schematics of the device to assess whether or not it it would draw any current. If I lost any electrons then I would be positive!
865519
I just took these readings from my solar charge controllers remote display. It appears to draw about .4 amps on low and .5 on high. I ran it for a while on both settings and it held steady at those readings. It was plugged into a cigarette adapter I'd install in the RV for small load devices.
1899235
This PortaPow unit does NOT regulate the output to 5V. All it does is to take the combined voltage of 4 cells, and substract a diode drop (~0.6V) from it. So if you are using 1.5Vx4 alkaline cells, the USB output is around 5.4V. But if you are using 1.25Vx4 NiMH cells, then the output is only around 4.4V.
856103
The amount of power drawn is actually controlled by the device. If your Note 3 "wants" 1.5A, and it detects that it's plugged into a charger capable of supplying it, it will draw 1.5A. If, on the other hand, you have a device that draws more current than the charger can put out, the charger shuts off (in this case).
1057083
This charger has a voltage readout so you can observe that it doesn't maintain a constant (float) voltage. It seems to let the battery drop to a predetermined level and than recharge (energy conservation?).
567986
The light will turn green when you put the battery into it, unplugged, but when you plug it in, the light turns amber. Then, when fully charged, it turns green again. I suspect it is something with current draw, zero current means green, positive current means batteries are still charging so amber. Very strange, but it works fine otherwise. Charge Times: My batteries are 4000mAh @ 3.7V. The charger is 650mAh at 4.2V. If you do the math, for two fully discharged batteries it takes 10.8 hours. Unfortunately, I charged them 'overnight' so I don't know exactly, but the 2 hours from John sounds lowball, unless he is just topping off their charge before using again. The light will turn green when you put the battery into it, unplugged, but when you plug it in, the light turns amber. Then, when fully charged, it turns green again. I suspect it is something with current draw, zero current means green, positive current means batteries are still charging so amber. Very strange, but it works fine otherwise. Charge Times: My batteries are 4000mAh @ 3.7V. The charger is 650mAh at 4.2V. If you do the math, for two fully discharged batteries it takes 10.8 hours. Unfortunately, I charged them 'overnight' so I don't know exactly, but the 2 hours from John... » Read More The light will turn green when you put the battery into it, unplugged, but when you plug it in, the light turns amber. Then, when fully charged, it turns green again. I suspect it is something with current draw, zero current means green, positive current means batteries are still charging so amber. Very strange, but it works fine otherwise. Charge Times: My batteries are 4000mAh @ 3.7V. The charger is 650mAh at 4.2V. If you do the math, for two fully discharged batteries it takes 10.8 hours. Unfortunately, I charged them 'overnight' so I don't know exactly, but the 2 hours from John sounds lowball, unless he is just topping off their charge before using again. « Show Less
323277
Probably; as the current draw increases the port's voltage will drop and the charging device will stop increasing its current draw. I got it primarily for one phone I had that would only charge on a few chargers leaving me stranded frequently - it seems the phone expected a voltage on the data pins to indicate a charger rather than a port; this corrects that problem. I also got a couple of USB volt- / am-meters to keep an eye on things and sort out chargers by power capability.
799140
Should work fine, I haven't seen the charger draw over 15 A from the 115VAC mains
1259439
It has a tiny LED draw even in a constant-on cig plug. I left mine plugged in when I went on vacation for three weeks and it had no functional effect on the battery charge in my Mustang.
1737104
I have the automatic model and it will go to 0 amps once the battery has reached a full charge.
1838965
It seems to. I leave it charging overnight and to my knowledge nothing wrong happens. What I don't like is the charger remains warm, maybe 100-110 deg F, when it is disconnected from the battery , but still plugged into the wall outlet.
146871
I tried this with a unit I purchased September 2014, and when I connect the Anker to the USB charger, it shuts off the USB ports. I was trying to use it to split a single 2A USB car charger to charge 2 phones at once, but it wouldn't do it. Both ports would shut off as soon as I connected this to the charger.In the end, I just charged one phone off this, and the other off the car adapter. Thankfully, it has capacity to spare.
119493
No, the USB charger circuit never completely powers off, though it does reduce its power usage.The unit I tested (the "decor" style, which almost certainly uses the same electronics as this one) continued to draw a bit less than half a milliamp at 120VAC when nothing was plugged in to it. This is according to a digital multimeter that I wired in series with the hot lead to my house wiring. Note that it was neither a high-end multimeter nor an oscilloscope, so it should be considered a rough reading, but should still give you a general idea of what to expect in the way of power usage. No, the USB charger circuit never completely powers off, though it does reduce its power usage.The unit I tested (the "decor" style, which almost certainly uses the same electronics as this one) continued to draw a bit less than half a milliamp at 120VAC when nothing was plugged in to it. This is according to a digital multimeter that I wired in series with the hot lead to my house wiring. Note that it was neither a high-end multimeter nor an oscilloscope, so it should be considered a rough reading, but should still give you a general idea of what to expect in the way... » Read More No, the USB charger circuit never completely powers off, though it does reduce its power usage.The unit I tested (the "decor" style, which almost certainly uses the same electronics as this one) continued to draw a bit less than half a milliamp at 120VAC when nothing was plugged in to it. This is according to a digital multimeter that I wired in series with the hot lead to my house wiring. Note that it was neither a high-end multimeter nor an oscilloscope, so it should be considered a rough reading, but should still give you a general idea of what to expect in the way of power usage. « Show Less