Hello picard.
I think it is best to use a good RC charger, they have a lot of different settings.
I use Bantam BC-6, with this charger i can choose how much I want to charge the cells, if I want to charge it very soft i choose the Li-Ion mode, now it only charge to 4,1 volt and the cell last longer than charged to 100%-- 4,2 Volt.
I can choose FAST charge and use Li-Poly settings: now the charging capacity is a bit smaller than normal charging but the process time will be reduced and this mode is also softer for the cell.
I can hook up my cells in a battery holder and charge more than one each time with balancing options so all of my cells have the exact same voltage.
I can choose STORAGE and the program will determine to charge or discharge the battery to the certain voltage depending on the voltage of the battery at its initial stage. They are different for different types of Li-*** cells.
I can charge NiMh, NiCd, Pb, Li-Ion, Li-poly, LiFe (A123).
If you ONLY want to charge 18650 the best charger is Pila IBC.
Anders