KEWEISI Voltage Meter Test & Review KWS-MX18

[@webchimp]

The view at 1:10 was interesting to me, as mine starts the timer the moment you plug it into a USB socket even if there's nothing plugged into the unit and starts seemingly recording it's own current use, about 11mA. This makes it impossible to know the real current use of small items as I don't know if when I plug something in and it says 25mA, is that the thing I've plugged in using 25mA or is only using 14mA.

[@nigelh3253]

A very useful review showing the hidden world of how many amps/milliamps different pieces of kit uses. Interesting! For me, I think the way the USB volt checker exposes different cables is very important. Basically, the el cheapo ones probably don't carry a good current - the more expensive (on Amazon, etc) are well constructed - and even have pictures of their cross section to show the quality of build. Yeah!

[@escargotiskuhol]

Thanks! I just ordered one

[@Sir-Kay]

Please help, how do I reset this thing back to normal, I got it this morning, I heard people talking about calibration, I went ahead and did it and I've since ruined it, because it's now giving wrong readings. Do you know how I can get it back to normal by reseting it back to factory default and secondly, what the heck is that calibration thing and what's the purpose? why do we do it? the first question is more important to me though.

[@newbeatlee]

excelent review,could ou share photos of the instruction booklet ? i receive mi unit in mexico , but without the intructions

[@realchristopher4334]

How does that calibration work? Up down left right. Oh-so confusing, especially the Chinglish on sellers' listings! Horrid!

[@sinewave3323]

That device is super cool!

[@DavidMFChapman]

With respect to the usb heater, power is the product of voltage and current. The display showed about 2 watts. What were you expecting? The vest showed 9 watts.

[@irfanghani5793]

i have this usb tester ,but it cannot show Ampere and feature ,how to fix do you know

[@hubzcaps]

Sola panal many uses

[@akashrJ]

Price

[@NevsTechBits]

About five bucks

[@marians6490]

I have the same voltage meter and I think is junk I drained my Tab s 7900mAh battery and after charging to 100% this voltage meter shows ~9000mAh capacity 🤣🤦‍♂️ I think you you want something good you need to pay more to get one that they use at repair centre

[@marvincullianan6740]

nope that 9000 mah is not its capacity. its the current that has been charge on it. so its basically has been charge means, it plus the system usage on the phone while its in charging. its the total mah

[@marians6490]

@@marvincullianan6740 but I charge it with the tablet turn off🤦‍♂️🤷🏼‍♂️

[@marvincullianan6740]

but you didnt unplugged it at exactly 100% charged. so current still flowing on the usb meter.

[@marians6490]

@@marvincullianan6740 yes you are right I will do the test again 🤷🏼‍♂️ But I still think the usb meter is crappy

[@marvincullianan6740]

ok bro. thanks. 👌