This is a good small charger (with a nightlight option - useful when traveling and you do not sleep at home). The batteries are very good quality, but unfortunately a large capacity [2700mAh] signifit a 14h Charche time! Combined with my external flash I manage to take over 250 pictures ... Perfect for small shoots in the restaurant but a bit limited for a wedding. This is a charger that should be sold with 8 batteries. Rare is the modern electrical appliances requiring this type of battery that is not put to sleep when the Charche is too low. So we deplore the lack of function "discharge" or "cycling" to ensure that the batteries be fully discharged before starting 14h load and optimize the life of batteries 4. Hey senior GP! Why not consider a fashion / interuptor / additional circuit which allow to supply the pilot with the batteries to discharge them? A led take the baton of the night when the detention was too chutte to indicate that the landfill is optimal. This is not rocket science. Just customer oriented ergonomics.
