I'm really happy with this charger "ultra fast" because it always happens to me breaking battery failure with my camera or necessarily when I need it and my traditional battery charger, smaller and loading only 2 batteries with 2 batteries wonder almost a day to charge my batteries 4 that there I can immediately recharge within 15 minutes flat and even load them in advance in case Even if the batteries are not charged fully in so little time, it allows me to continue my photos and not to be broken which is always frustrating For 30 euros, it's worth it even if it does not last forever, it comes in all ways cheaper than conventional batteries which empty visibly and this is Greener Perfect FL