It is stable when charging my phone (and you can see how intelligent the phone built-in charger is as it draws less approaching 99% full), and shows a steady 0.03 A for my Logitech wireless receiver.
As HKJ said, the Soshine SC-F3 charger pulses during charge cycle. You can see it more clearly with an ammeter or scope:
I will use it to check the voltage drop of the usb 5v when charging/using high powered devices and measuring the current they draw when charging/using…. also checking the quality of the ps
I think, all his batteries are charged up to 4,2V and he hasn't any other at the moment. Now he has to use a flashlight to get a battery, which must be charged again. The sun will be down here in Germany in maybe an hour :)
[quote=Chloe]
Well these things can vary but I got mine from Ebay seller estore2009.
[/quote=Chloe]
I ordered one from there too - arrived this morning, which is pretty quick considering non-tracked China(?) Post. Neat little tool - thanks for the link Chloe.
I haven’t taken it out of the plastic casing, but it looks similar to your picture. It says “CHARGER Doctor” and “3.5V- 7.0V, 0A-3A” on front. Reads 5.06v from my laptop. Only took 11 days to get here - pretty good.