Works great and charges my batteries fast. it's even small enough and simple enough to bring to the games with me so we can charge up any batteries that weren't charged before they came so we have more people play. Takes like 45 minutes to charge huge batteries so they can play all day and in the end its an AMAZINGLY good investment. almost as good as a gun because it will keep your batteries safe from overcharge but even better it charges them faster!
btw, it's important to know that the little black cord(not AC power cord) that is with the charging cable(part that connects to battery) is a temperature sensor and it uses that to know when the battery is charged and I recommend using like a rubber band to keep it tied to the battery to make sure it knows then it's finished. My friend got one of these without a temperature sensor and he almost fired his brother's battery because it never stopped charging and the battery was getting VERY hot which is unusual for this charger because it stops after the battery is warm.
Fast charge time
None, Exactly what I needed
Rating: [5 of 5 Stars!]