Pour les fainéants, la conclusion :
Soit : tension de fin de charge trop élevée (4.3 V au lieu de 4.2)...The charger uses the correct algorithm has a good termination current and I like the design, but the high charge voltage is not acceptable.
The usb output does also work fine, but I do not know how much use it is in this type of charger. If it had been powered when the charger was powered, it would probably be more useful.
If Efest fixes the high charge voltage it will be a good LiIon charger, but before that happens it is not very good.