Involvement:Expert (understands the inner workings) - Ownership:less than 1 day
I ran a couple of tests, and it slow-charges cells that are below a certain voltage at about 50mA. Less-dead cells charge normally, at about 300-400mA. It seems to take pretty much any kind of cylindrical lithium cell. Charges 2 cells at once. the circuits seem to be independent, so it should be okay to charge 2 unbalanced cells, or even 2 different physical sizes of cell. Your mileage may vary. Convenient compact size.
Build quality is a little bit rough around the edges, but it seems pretty sturdy. It can be difficult to insert 18650s.
The first thing I did with this charger was to take it apart, because I'm that kind of guy. Yes, the second screw is under the label. There seemed to be some kind of residue that could have been left by a liquid on the PCB, but nothing serious (no corrosion or rust). Internal build quality is a bit shoddy, but adequate.
It's a fantastic charger for the price. The slow-charging feature could be really useful.
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