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USB Wall Charger 2.1A - Black
Charge your Apple iPad® or other USB-powered device with this MFi certified Wall Charger from Monoprice!
This wall charger plugs directly into a wall or power strip outlet and provides a full 2.1A/10W output at 5 VDC, just what is needed for the iPad or any other power-hungry USB devices. The charger measures 1.8" x 2.1" x 1.2".
Because it uses a separate cable (not included), this charger is also suitable for use with non-Apple USB devices, such as the Amazon Kindle Fire, Samsung Galaxy SIII, or any other device that uses standard USB power levels, by using the appropriate charging cable.
Charging cable not included!
Apple, iPad, iPhone, and iPod are trademarks of Apple Inc., registered in the U.S. and other countries.
Amazon and Kindle are registered trademarks of Amazon Inc.
Samsung and Galaxy are registered trademarks of Samsung.
Questions and Answers
PROS: It does work as it intends to work.
CONS: On Android devices, this charges at 0.5A (slow charging). This is misleading as it advertises 2.1A.
Apple uses proprietary circuitry in iPad chargers that looks for certain signals to allow the device to draw more than the standard output. Every other company (Android and Windows Phone) uses a simple short across the two data contacts in the USB connector that tells the device that it's plugged into a power port, not a computer, and the device then knows that it can draw more than 0.5A. When I plug my non-apple phone into this charger, it thinks it's plugged into a computer and only charges at USB rates.
I've done my own fix on a few other chargers by simply soldering across the connectors inside the charger, but I can't figure out how to get these chargers open without damaging them. I guess I'm not sure if that's a plus for build quality, or a minus for repairability. Either way, I'm disappointed with this product.
PROS: 2.1 A for proper devices
CONS: Does not charge android devices at 2.1A!
CONS: Does not have the data pins shorted for android devices.
PROS: 2.1 A output in medium-small form factor (if you can trick your phone / tablet into drawing that much)
CONS: claims to be a 2.1 A charger but does not have the 200 ohm resistor between the D+ and D- pins so that your phone / tablet knows that it can draw that much.
To salvage my purchase without the hassle of the return process, I opened this thing up (also not easy), made the proper connection between the data pins, and slathered the primary inductor in CA glue. Unless you're either willing to do this, or are looking to power Apple devices somewhere noisy like a dance club or factory floor, it's probably better to steer clear.
PROS: Produces 5 volts.
CONS: Doesn't conform to USB charging spec.
Makes constant annoying noise.
PS For all those that say you were tricked and thought there a cable was included, hopefully it's a lesson to actually READ the item description. You will fare much better that way, I promise.
PROS: Amazing bargain for a true 2.1amp charger.
CONS: If you can find a fault with true 2.1amp charger for this price, you may never be pleased
PROS: Does the job perfectly, supplying enough voltage and current for RPi and all interfaces.
PROS: Inexpensive, Durable, Quality
PROS: Good price, quality
CONS: Noisy, makes low frequency hissing sound.
Apparently, this charger goes with apple way. And, if you want to use it on none-apple device, you need to buy a "charge-only" usb cable which shorts the D+ and D- inside the cable. Considering these kind of "charge-only" cable sales around $7 at Amazon (could not find it at Monoprice), I would probably go with a dual-port (one for apple, one for the rest) charger from Amazon.
PROS: The customer service at mono price is awesome. They sent me a replacement within 24 hours.
CONS: Out of box, this charger can ONLY work with Apple devices. Using the standard USB cable, it does not work with my Nexus 7 or old black berry cell phone. You need the so-called "charge only" usb cable in order to make it work with these none-apple device.