Portable USB Power Analyzer with OLED Display for All Power Testing

64 reviews for Portable USB Power Analyzer with OLED Display for All Power Testing

1. Stephanie GillVerified Purchase

   Rated 5 out of 5

   I have an issue where my phone is not charging as fast as I thought it would. I bought this device that displays both the current and the voltage of t...More

   I have an issue where my phone is not charging as fast as I thought it would. I bought this device that displays both the current and the voltage of the charge. It helps me identify bad wall chargers and bad USB cables. It also shows me that my car charger is working properly but it does not have enough power to charge my Samsung phone.
   Nazifa SpenceVerified Purchase

   Rated 5 out of 5

   I bought the usb c + usb a version. both seem to work fine. it shows voltage, current, total maH (so you can measure capacity of backup battery) and t...More

   I bought the usb c + usb a version. both seem to work fine. it shows voltage, current, total maH (so you can measure capacity of backup battery) and total time. It also has 10 memories. On the normal screen, press 3 seconds to write to memory, on the memory screen, press and hold 5 seconds to clear all memory, click once to cycle through the screens.
   Eden TylerVerified Purchase

   Rated 5 out of 5

   In addition, it is useful to determine the quality of the USB cable. Some have much lower resistance than others, low resistance cables perform unsurp...More

   In addition, it is useful to determine the quality of the USB cable. Some have much lower resistance than others, low resistance cables perform unsurprisingly better. I took this product camping and it got foggy/rainy, it flew around in my backpack and in my toolbox at work without any protection, I was leave it in the car in the summer when it's hot.
   MischaVerified Purchase

   Rated 5 out of 5

   This device helps to know if your USB is charging well or not. That comes in handy in our home. This tool helps you determine if the USB port is provi...More

   This device helps to know if your USB is charging well or not. That comes in handy in our home. This tool helps you determine if the USB port is providing enough power. It is easy to use and it helps us to know when to change which charger. It helps in troubleshooting when needed. Klein always makes quality tools so I don't worry about it not being durable. Love this product.
   Lorcan McintoshVerified Purchase

   Rated 5 out of 5

   I like that I can read the screen even when the port is upside down or in a difficult position. It has built in load test up to 3amps and I can test t...More

   I like that I can read the screen even when the port is upside down or in a difficult position. It has built in load test up to 3amps and I can test the charging mode. It would be a blast if it always showed the mode. For heavy testing you will need an external load as the built-in load is only on for about 5 seconds which is plenty for a quick test. The tester case is very durable and will last in my tool bag.
   Neo TrujilloVerified Purchase

   Rated 5 out of 5

   I have used this device to diagnose if a MacBook (for example) is working properly or not pulling power. It's awesome, pocketable, easy to read (meani...More

   I have used this device to diagnose if a MacBook (for example) is working properly or not pulling power. It's awesome, pocketable, easy to read (meaning personally I can hardly ignore it). It works great, I bought another one for my colleague.
   Hadley EricksonVerified Purchase

   Rated 5 out of 5

   It's very interesting to see how much juice devices are pulling from ports and verify cables are pulling their specs. Helpful that it has usb and usb-...More

   It's very interesting to see how much juice devices are pulling from ports and verify cables are pulling their specs. Helpful that it has usb and usb-c. I can easily see charge rates for my iPhone X and iPad Pro and know they are getting their max speed
   Robbie KerrVerified Purchase

   Rated 5 out of 5

   I know there are cheaper usb inverter meters here, but I've had great luck with tools in the past and I wanted something that I could trust to be accu...More

   I know there are cheaper usb inverter meters here, but I've had great luck with tools in the past and I wanted something that I could trust to be accurate and not die within a month. I also bought this product version. Also works well and is much cheaper.
   Isla YoungVerified Purchase

   Rated 5 out of 5

   Perfect for testing USB plugs. I got it to test a small solar panel to ensure the best placement and ended up using it on every block I had. Add to th...More

   Perfect for testing USB plugs. I got it to test a small solar panel to ensure the best placement and ended up using it on every block I had. Add to that a Klein, there may be cheaper options but no better quality than this one. This is sure to last for many years
   Cally CarrollVerified Purchase

   Rated 5 out of 5

   I had a 'faulty' charging port and it also dimmed the bedroom lights, which indicates a problem. Very rare, but you don't want to sell a big 5th trail...More

   I had a 'faulty' charging port and it also dimmed the bedroom lights, which indicates a problem. Very rare, but you don't want to sell a big 5th trailer whose plug won't charge your phone! So far, I've only played with pass-through, bought it to test the USB ports, it works great.