Has anyone seen those yet? https://tindie.com/shops/Rager/liponano-1/
They look really great (and price - $11 - is very good too), and leads are also detachable (so you can have few sets of wires - wired to a battery holder, wired to magnets, etc).
The only disadvantages I see is that you have to make your own leads, and that 100/500mA switch requires soldering, but otherwise it’s a pretty little charger!
Here are a couple photos:
Size comparison to a coin:
With removable leads:
With permanently soldered leads, ending with magnets:
Charging graph for used microcontroller (this example uses 100mA charging rate, though):
Nope, not yet.
I’ve placed an order on this charger, though, and I’ll let you know how it goes - but I can’t you update you on how it goes until I receive it, which won’t be earlier than 25th January, when I’ll return from my 2-week long skiing trip to Switzerland.
Just so you know, “jst” is loosely used to describe connectors of various styles unfortunately.
Even among “mini jst” types there are many.
The example above is for 3-pin servo connectors but the categories are the same for 2-pin. Thanks to sparkfun and the like, I believe jst-xh (2.5mm) has become common for charger types these days. Just confirm it with someone.
The connector from Sparkfun fits. I think this charger should come with leads even if it increases the price slightly, especially since the seller/inventor cannot specify the connector.
@Changchungleds, I don't think that will work. That connector looks like it has two ribs on top, but the right connector only has one rib.