charging lithium ion batteries

[curious125]

I'm trying the charge a pack of lithium ion batteries, but all information that I can find thus far will only allow 1 or 2 cells in series at a time. Does anyone know of a curcuit that will allow 4 to 6 cells in serial?

 

[felixc]

do a search for the company "benchmarq". They used to be the leaders in lithium-ion circuits. I think they're now part of Texas Instruments. If they don'T have a chip that does it all, they surely have app notes on the subject.