Having constant voltage source by itself is no guarantee against overheating/overcharging.
You don't necessarily need a charger per cell, but you do need at least a thermal sensor on each cell. All the sensors should talk to the charger. Regarding charging profiles, they are developed and in fact in many cases not that different from PbA alg, except for thermal compensation and full charge detection. Consider this: http://www.thunder-sky.com/qxt/Curve-2.htm They recommend simple CC/timed CV method (provided, you monitor temp and compensate for it). Also combining tracking Ah in/Ah out with dT/dt should be sufficient as well. A charger better have downloadable (in non-volatile memory) profile ability with programmable timers for each charging phase. It has to have means to be throttled/shut off by external sensors and optionally - by an Ah counter. Not terribly complex, but bad boys are definitely out... Victor jerry dycus wrote: > > Hi Bruce and All, > Most Li-ion batts have a charger on each cell > to keep it inside it's thermal limits. So just a > constant voltage source should be all you need. > jerry dycus > --- Bruce EVangel Parmenter <[EMAIL PROTECTED]> wrote: > > If li-ion batts become affordable and available, my > > next > > question would be > > -what chargers have a charging algorithm for li-ion? > >
