I’m confused whether they actually include batteries - it does say “Battery not including”, but also says “Built in18650 batteries can be replaced …”, so I suspect they aren’t included, which makes it a little expensive, compared to, say, the Xiaomi powerbank.
I also love the “Panasonic or Trustfire? It’s your choice”. 
Hi HKJ,
Did you already test a DROK usb meter?
Such as:
https://www.pretzellogix.net/2015/04/20/the-portable-led-usb-multimeter-that-you-didnt-know-you-needed/
http://www.amazon.com/gp/product/B00S2HJAUE/
http://www.amazon.com/gp/product/B00S2IA3DG/
http://www.droking.com/drok-new-version-micro-oled-usb-3-0-meter-voltage-current-charger-detector-a-must-have-tool-for-a-geek/ (USB 3.0 13V version)
https://www.youtube.com/watch?v=o0Ud9sJNX84
It seems to be very interesting on paper, that’s why your expertise would be very appreciated 
I have not tested the DROK brand, but something similar:
http://lygte-info.dk/review/USBmeter%20Volt%20Current%20Capacity%20UK.html
http://lygte-info.dk/review/USBmeter%20voltage%20tester%20OLED%20UK.html
Hmm, if they are similar they are not very accurate then :_(
They are fairly accurate, what do you expect better?
I may have misunderstood your tests, but I thought they were less accurate than this other one that you tested too:
It is about the same.
Look at the "Display U" column with current=0 and the "Display A" column when I test with different currents.
Voltage will not be very precise when current is flowing, it will be something between voltage at the input and the output.
The one with the lowest resistance will usual be the winner (That is a very important parameter on these meters).
4xAA emergency powerbank wiv flashright:
http://www.ebay.com/itm/121274503719 (cheapest, in all colors)
http://www.amazon.com/dp/B00I0RA3XE (same one, in black)
http://www.amazon.com/dp/B00HCBHZV2 (seems to be from the same factory)
+1
That one looks like the most advanced i have seen yet.
I hope it is a good one, 8x Sanyo 3500GA should be about as good match as anything out there i think to this powerbank.
Hi HKJ. Just saw this on GB and would like to have your review if possible Even if the answer is a negative, I want to thank you once again for all the great work you do.
http://www.gearbest.com/cables-adapter/pp_77158.html
and this one too.
http://www.gearbest.com/car-gadgets/pp_203508.html
I waiting for this that I backed the ultimate charger!!! https://www.kickstarter.com/projects/ezelleron/kraftwerk-highly-innovative-portable-power-plant
I usual do not do car adapters, but I have ordered this one and also the other one.
Interesting, if this ever get made it could be interesting to test it.
Thank you Sir
Has a Qualcomm name and logo in the illustration, but also another maker’s name in the description
I will accept Quick Charge suggestions now, I succeeded in making a box that can trigger it.
I have ordered this one, now but it will be some time before I get around to test it.
Not sure if I missed something but did you already test the blitzwolf 24W 4.8A 2x USB wall charger? (blitzwolf 24w - Buy blitzwolf 24w with free shipping | Banggood Shopping)
I got it a few days ago and am working on it, but I do not have much time this week. I hope to publish the review in about two weeks.
alright thanks for the heads up!
Can you share some initial impressions? (good or bad quality?)