Maybe its just me, but i always get about half the amperage i sholud get. I know the charger and cable are delivering 2A because of charging times, but tester indicates only 1A.

muy buen producto para su bajo coste, es muy bueno para efectuar mediciones de los aparatos conectado por puerto usb, indicandome el amperaje y el voltaje que circula por la pieza que se desea medir, esto tambien ayuda a proteger los puertos usb de la PC ya que los que vienen incorporados solo y... muy buen producto para su bajo coste, es muy bueno para efectuar mediciones de los aparatos conectado por puerto usb, indicandome el amperaje y el voltaje que circula por la pieza que se desea medir, esto tambien ayuda a proteger los puertos usb de la PC ya que los que vienen incorporados solo soportan 500mA y si un aparato conectado al mismo supera esa carga puede quemar dichos puertos, el unico contra es que el material es algo delicado, pero haciendo un buen uso puede ser duradero Read more

Pros: I had problems at times with charging my smartphones and other devices, wondering why some take a long time and others don't. Using this, I was able to see why the slow charging devices were slow charging, and it really helped so much. Cons: The L shape of this product may not play nice USB... Pros: I had problems at times with charging my smartphones and other devices, wondering why some take a long time and others don't. Using this, I was able to see why the slow charging devices were slow charging, and it really helped so much. Cons: The L shape of this product may not play nice with some USB port orientations, and may block other ports from being used. Other thoughts: I'm really glad such a thing existed, because knowing the output of a particular USB port is very important, as I've had Hard Drive failures prior to this and those HDD failures were always due to lack of power/sudden power loss. Read more

I got this because i have been really interested in usb devices and now that they are so popular 5 volt devices are becoming a standard. This device couldn't be easier to use, just plug it in and it displays voltage and current. The display slowly cycles through both readings. This unit also has... I got this because i have been really interested in usb devices and now that they are so popular 5 volt devices are becoming a standard. This device couldn't be easier to use, just plug it in and it displays voltage and current. The display slowly cycles through both readings. This unit also has a 3 amp rated measuring range and though i have not tested it to that high of a current, it does have a good and consistent reading range. I also tested this in conjunction with a fluke 85 and the readings were very close. Pro: Accurate and reliable Easy to use con: It isnt as shinny as i thought :p Read more

Pros: very useful to check if a power charger device or an USB connecting cable is working correctly. Cons: none.

Worth the purchase even if you're not a geek :) This solved all my cable/charger issues. I've had a Samsung Galaxy S3 which was very picky on quality of cables - wouldn't charge at top speed if cable or charger weren't good. Now I have an LG G3 and a Doogee Y100X (bought on DX, and very I've gone... Worth the purchase even if you're not a geek :) This solved all my cable/charger issues. I've had a Samsung Galaxy S3 which was very picky on quality of cables - wouldn't charge at top speed if cable or charger weren't good. Now I have an LG G3 and a Doogee Y100X (bought on DX, and very satisfied). I've gone through all my chargers with all my cables and finally threw away all the bad cables which were either not of top quality, or had started to get a bit old and worn and weren't charging at top speed. I also know which charger has problems with which phone. For example, the LG G3 does a quick charge at 1.8A only with certain chargers. Otherwise it charges at around 0.7A which is half speed - and doesn't tell you this. Without this device I couldn't know of the issue with several chargers. If you care about charging times (who doesn't?) just get one of these devices. Also, the build is sturdy so it seems it'll last forever. Read more

I've recently noticed that not all USB charging cables are equal: Sometimes, when I use the same charger and phone, the choice of cable makes a significant difference in charge time. This cheap gadget is an excellent way to measure the amount of current that actually gets to my phone. It's how of... I've recently noticed that not all USB charging cables are equal: Sometimes, when I use the same charger and phone, the choice of cable makes a significant difference in charge time. This cheap gadget is an excellent way to measure the amount of current that actually gets to my phone. It's amazing how much difference the choice of cable can make. Read more

Pros: * Displays voltage and amperage intermittently Cons: * None

I was actually just looking for a way to test iPad cables that are on sale, to make sure they really can do 'fast' 2.1 amp charging. This fits the bill perfectly for that. Looks very accurate, and the way it just sits inline with cable makes it perfect. I also now use it to test that an external... I was actually just looking for a way to test iPad cables that are on sale, to make sure they really can do 'fast' 2.1 amp charging. This fits the bill perfectly for that. Looks very accurate, and the way it just sits inline with cable makes it perfect. I also now use it to test that an external battery is still feeding a timelapse camera. This lets me see from a distance that the camera is still drawing power, and thus still 'recording'. Build quality is good. Looks sturdy and tough enough. I recommend it. Read more

Pros: Voltage/Ampere display switches every few seconds, exact display, fast update Cons: none that I found Other thoughts: very helpful for testing your chargers which load how fast or maybe have low current