Hello.
I want to build a Li-ion cell battery charger for six nice Samsung ICR18650 26F cells I have, and charge them either individually, or in pairs, using one of the dedicated Li-ion charger ic's available on the market.
This is the battery cell datasheet:
http://www.produktinfo.conrad.com/datenblaetter/250000-274999/251024-an-01-en-LiIon_AKKU_SAMSUNG_ICR18650.pdfAccording to the manual these cells can be charged up to max 1C, with an ending relative capacity of 90%, as a trade off. 1C equals 2600mAh, so for the CC (constant current) operation of the charging process, the charger must feed the cell with 2,6Amps for a certain period of time. Is this value the "Charge Current (Max) (A)"? I mean, does the charger chip its self has to be able to handle 2,6Amps of output current? But, since some ic's are capable of only 15mA, and even less, I'm guessing that this in not the case, and the output current is driven into an external circuitry, or not?
Actually my question might be a lot simpler: How can a big Li-ion cell be charged, or be fast charged? Is there a "suitable" chip for my case?
All answers are welcomed.
Thanks