> I'm going to have to look at what Samsung does. Their standard
> charger is 2.1A and the little in-line USB voltage / current meter I
> have says that both my phone and tablet (both Samsung) do indeed
> start charging at somewhere near 2A. Interestingly enough, the
> current reading oscillates between several values every few
> seconds. I have *no* idea why it does that. The voltage out of the
> wall wart seems to remain constant as the current varies.

That is just whatever charging scheme they decided to use in operation. =A0=
The wall wart is never anything more than a "stupid" CV SMPS, sometimes wit=
h a current trip for safety, but it isn't really designed to charge the bat=
tery directly. =A0All of the "smart" battery manglement stuff is inside the=
 s/phone/tablet/g. =A0If you want to "roll your own", I highly recommend th=
e MCP73832, but it's actually cheaper to just buy one of the LiIon chargers=
 on eBay. =A0The charging current can be set by changing a resistor. 		 	  =
 		 =20
--=20
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