That might work fine, if you can trust the supply to reduce voltage when overloaded, without blowing up.
It might take the same time, but for me the advantage is that I do not need to do anything while it is charging, i.e. I can start the charger when I go to bed and both phone and 18650 battery is filled the next morning.
I am using a SKROSS dual USB charger, it is not adjustable, but it is small and works fine (I have not tested it, only used it).
It is not the same, it uses different connectors and I do not believe it has USB power out.
I’ve tried it earlier with a 0.2V 18650 and it keeps flickering with a green and red LED pattern, as though there is no battery inserted. Does yours do the same too?
Thanks HKJ! I really like the two of mine, although I had to file down the edge of the charger so that my King Kong rasied top INR's would fit better (the raised top causes it to pop upward. I don't have a photo of the filing, but my initial issue was documented in the other thread with photos. I power mine with the USB A/C adaptors from Manafont (clones of the Apple iPhone ones) rated 1A output.
I've been curious about this charger ever since I saw it the first time. Found a review on "taschenlampenforum.de" or something similar and they said it was good but no where as detailed as your in depth reviews.
Thank you for using all that time and money for us guys out here. We enjoy it :-)
This is an awesome charger, the plastic is really tough.
Reverse polarity protection works. Resets the protection after has kick in protected cells and the voltage is 0.00V
When the battery voltage is too low cannot charge other devices, the blue light will not turn on and, the light not being on is a good thing because you have a visual representation of what's actually going on.