This was posted 10 years 7 months 13 days ago, and might be an out-dated deal.

Related
  • expired

Mini Voltage and Current Detector USB Power Tester Only US $1.49+Free Shipping (200 Pcs) @Newfrog

382
Mini Voltage and Current Detector USB Power Tester Only US $1.49+Free Shipping (200 Pcs) @Newfrog
Go to Deal
Store RepNewfrog.Official on 19/06/2014 - 19:58 newfrog.com (986 clicks)
Last edited 19/06/2014 - 20:01
NFDEAL0617

Today Newfrog is offering this USB Power Tester for all OZbargainers with such a good price—only $1.49+free shipping.
This item is made for your mobile phone and other equipment,this item can test the capacity and voltage of the battery.Can measure usb interface,cell phone charger,u disk and other products or power supply situation.

Apply the coupon code NFDEAL0617 on your check out.
Note: The coupon can only be used for one time and limit one piece per person.

Coupon code: NFDEAL0617
Limited quantities：200pcs

Description:
Compact and easy to carry,no additional power supply.
Current and voltage loop display,easy to use and practical.
USB charger can detect whether the target output voltage and current.
Stable, reliable performance,anti-interference ability, high temperature.
Convenient measurement of the output voltage of the usb port and the device operating current.
Measure usb powered devices,load voltage,usb terminal equipment when working voltage.
Uses electricity generation four semi-double loop integral converter IC,with precision bandgap reference,range accuracy.

Specifications:
Operating range: U=3~7.5V,I=0~2.5A
Resolution: Voltage 10mv current 1ma
Error: Voltage Color: Blue

Included:
1 x USB Power Tester

Electrical & Electronics USB Power Tester

Related Stores

NewFrog
NewFrog

closed Comments

  • cristtos on 19/06/2014 - 20:18
    +2

    Not sure why but I bought one :) so gullible…

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 11:43
      +1

      lol no you are not.:)

  • Skitzout on 19/06/2014 - 20:37
    +1

    same. I bought 1. time to test my genuine samsung aliexpress special chargers haha

  • greenie4242 on 19/06/2014 - 20:44
    +5

    Description is so woefully inaccurate it's actually funny. There's no way this could test a battery, but it's a good way to test a charger and see if it's putting out the necessary voltage and current, and to see if a device is really charging properly or if nothing is happening.

    If you've ever tried charging a mobile phone, camera or tablet with the wrong charger or cable you'll know it might not charge properly. Unfortunately when you buy a new USB device, most of the time none of the (profanity) chargers have markings indicating which device they came with so unless you were able to mark each one with a label as soon as it came out of the box, it's impossible to know if the 'Samsung' charger you're using came with your S2, S3, S4, or some old ancient thing which only puts out 300mA but doesn't have any writing on it, or if the thing that looks like a Sony mobile phone charger is actually a camera charger or a book reader charger. A device like this could help solve the 'charger roulette' where you have four mobiles phones, four tablets, two book readers, two digital cameras in your family, twelve chargers, but nobody knows which charger came with which device.

    Cheapest I can find on eBay is AU$2.75, so not a bad price. Not sure what the quality will be like, but it works it should be a heck of a lot easier than hooking a multimeter up to an old spliced USB extension cable like I usually do.

    Thanks!

    • [Deactivated] on 19/06/2014 - 21:09

      Great explanation. I ordered one because of you.

    • bchliu on 19/06/2014 - 21:27
      +3

      It can test a battery - if it is one of those USB emergency chargers with inbuilt batteries. I think that is what they mean.

    • Russ on 19/06/2014 - 21:40
      +2

      US$2.49 (about AU$2.64) at BuyInCoins, cheaper than the Ebay sellers you found:
      http://www.buyincoins.com/item/34684.html

      So I agree with you, $1.49 is a good price.

      Could use it to test "power bank" USB emergency chargers - perhaps that's what they meant by testing the voltage of the battery? Could also test the capacity with a constant load (maybe a USB fan or other gadget), and seeing how long the power bank lasts before the voltage drops.

      Edit - beaten by bchliu, I must learn to type faster.

      • greenie4242 on 19/06/2014 - 22:00
        +1

        Good point bchliu and Russ, I hadn't thought about USB battery packs - it would be useful to see if they are putting out the correct voltage and current, and for how long they last.

        But keep in mind it still may not be much use for testing if the battery packs are fully charged or not, as most of them put out a pretty steady voltage until they suddenly die on you. It depends on the type of cells and the type of converter used to regulate the battery voltage up or down to 5V. Some regulate to 5V pretty well at a constant voltage until the battery drops below the required threshold for the buck converter, then they drop to 0V. They certainly don't work like old battery packs used to work, where a lower voltage means less charge and a higher voltage means fully charged.

        • NosDan on 19/06/2014 - 22:18
          +2

          it would be useful to see if they are putting out the correct voltage and current, and for how long they last.

          when im charging my powerbanks they often output less than 5V while they are charging themselves, tho the fones dont seem to mind. i also have a powerbank as a backup/UPS on my RPi which i have conected in such a way that it powers the RPi only when the 240v goes off, then automatically goes back to using 240v when it returns and recharging the powerbank, thats why i just ordered another few of these. to double check what powers being used where.

  • cheepwun on 19/06/2014 - 21:02
    +2

    Great little unit. Screen alternates between voltage and current. I often wondered if a regular LCD (non-bright-red-digits) would draw less power from the USB port (for more accurate measurements). I have the exact same model and I like them. Price is cheap.

  • omniX32 on 19/06/2014 - 21:02

    Hrm, after the PayPal process I got an error saying there was nothing in my shopping cart…

    • deal88 on 19/06/2014 - 22:00

      I get the same

      • deal88 on 19/06/2014 - 22:02

        Just tried again and it worked.

        • NosDan on 19/06/2014 - 22:19

          you should get a paypal email notification a few seconds after you go back to newfrog and finish your order.

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 11:53

      Hi omniX32,

      Sorry our website was busying at that time.Have you placed your order successfully?

  • Frankly Frankie on 19/06/2014 - 22:52
    +2

    Gadget! Thanks rep!

  • ChatCPT on 19/06/2014 - 23:48

    "Unable to place the order.Sorry for the inconvenience,due to the payment number is too many.our technical personnel is trying to solve the problem now.please try to pay later."

    say what

    • NosDan on 19/06/2014 - 23:52

      i just tried again, i got to as far as putting in my paypal password without issue. (using firefox)

  • madturbo123 on 19/06/2014 - 23:55

    I'm getting the same issue. Ozbargianed!

  • Elijha on 20/06/2014 - 00:00

    applied the code - didn't say it was invalid .. but the price did not change.

    • NosDan on 20/06/2014 - 00:02

      i just tried again….. worked for me up till i had to enter my paypal details…..

      try "checkout with paypal" option when your checking out?

    • supersabroso on 20/06/2014 - 00:33

      That's what I thought, just try to pay for it. That's how you can tell what price you're really paying for this thing.

  • mady123 on 20/06/2014 - 00:04

    thanks bought one. Already wanted to check 10 x mobile usb chargers that are not working :D

  • supersabroso on 20/06/2014 - 00:33
    +2

    Useful device. Just bought this out of pure curiosity as to what all the USB ports in my life are outputting and to figure out why my original GS3 cable charges my GS3 more slowly on an AC powered USB charger than at a USB port on a computer.

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 11:58

      Thanks.You idea sounds cool!

  • letthiswork1 on 20/06/2014 - 00:45

    is website crash?

    • letthiswork1 on 20/06/2014 - 00:47

      error = SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction

      • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 12:02

        Sorry for this issue.Our website was busying at that time which may cause the error.
        We are struggling to improve this problem.Please understanding.Thanks.:)

  • bargaino on 20/06/2014 - 01:04
    -2

    multiple attempts and different website errors.
    Hope they don't bill my paypal.

    Don't waste your time.

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 11:41

      Hi manic,

      We are very sorry for this matter.The website system was busying at that time(which has caused different website errors).

      We are struggling to improve this issue.Pls understanding.Thanks.:)

  • eug on 20/06/2014 - 01:54

    "Coupon code "NFDEAL0617" is not valid."

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 12:04

      Yeah,the coupon has limited to 200 times usage for this item.You guys are so crazy lol:)

      • eug on 20/06/2014 - 13:41

        200 people bought it in 4 hours?

        • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 16:41

          Yes,200 sold in 4 hours.:)

  • [Deactivated] on 20/06/2014 - 02:38

    I have one that looks identical to this, but w/o the white lettering on the case.
    Mine has proven to be both useful, and accurate. Cost about twice as much as this one, purchased from ebay.

    Have since bought a couple of different ones with separate volt and amp displays.

    Several different ones to see on dx if you do a search.

  • mishrael on 20/06/2014 - 04:14

    "Coupon Code NFDEAL0617 Applied" but price stays the same even using paypal, so looks like the deal might be done now?

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 12:06

      Sorry for this matter.The deal is ended now.

  • sirplus on 20/06/2014 - 06:43

    Expired -code is no longer valid, message up top after applying

    • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 12:09

      I'm sorry.The coupon code has been used up.

      • Elijha on 20/06/2014 - 14:12

        Please bring it back at some point - was not able to order it (gave up trying with all the glitches).

        • Store RepNewfrog.Official @ NewFrog on 20/06/2014 - 16:42

          Sorry to hear that.Could you pls send me a PM regarding this?I will see what I can do for you.:)

  • samlor on 11/07/2014 - 19:28

    Warning, you might like to check the item on delivery. Mine was DOA. I emailed the seller and they issued a refund promptly with no fuss via PayPal (the method I used to pay for it).

    ——- Forwarded Message ——-
    Thank you, I have received the item but it does not work. Can you replace or refund, please?

    I have plugged it into various USB ports and chargers using various cables and devices. The display does not power on and the devices receive no charge.

  • Windows98 on 22/07/2014 - 18:04

    Got mine today. Worked fine, the values line up with an app I use on my phone to measure current.
    Should have got a couple more for when it eventually dies.

    • Store RepNewfrog.Official @ NewFrog on 23/07/2014 - 12:00

      Thanks for your feedback.:)

Login or Join to leave a comment
Login Join