do usb’s pull a lot of power?
that seems really odd to get one.
QC does, otherwise no
https://www.aliexpress.com/store/product/RD-UM25-UM25C-for-APP-USB-2-0-Type-C-LCD-Voltmeter-ammeter-voltage-current-meter/923042_32855845265.html
i've got this one
ooo you can see actual charge rate
?
You can measure powerbank boost/charge circuit inefficiencies, capacity of powerbanks, current draw/supply capability of various devices
yeah
in amps and watts
@Goz3rr your shit can even graph voltage and current over time
damn
it's fancy
got it for a bit cheaper than it is now too
11 eur i think
https://www.aliexpress.com/item/8-in-1-USB-Tester-Voltage-Current-Detector-Mobile-Power-Voltage-Current-Meter-USB-Charger-Doctor/32814987825.html
That's the one I'll be getting
i've got one of those too, but it cuts out when i plug some heavy loads into it for whatever reason
How heavy are we talking about here
1-2A probably
4-30V range, 0-5A range
this one?
pretty much yeah
oh also, you need to calibrate it when you get it
to quote the chink
Yeah I see
If you need to set it, press and hold the USB tester key. Insert the USB charger, enter the USB tester backstage, switch to the current interface, double click or click, the current will be set to 0.00A, thank you!
mine would display 0.02A with nothing plugged in before i did that
I see a lot or reviews complaining about the current readings
i've never compared it to my rdtech one
but you should probably get within 10% accuracy
good enough for hobby use
mostly because when i plug a dummy load in to try the screen turns off <:alithink:327930371796893698>
It seems hit or miss
Some people have a 3.5% current error, other guy 20% but fixed it by jumping together 2 resistors
@timsandtoms show me your 18650 storage solution
I know how you keep your lights, but not your cells
what is your opinion on those soldering setups with a few alligator clip arms and a magnifying glass attachment
