the metal Upgrade Parts for Walkera Dragonfly is what i want

this little battery is very great
very stable by the voltagerange
i load this battery about 8 ampere
its only 35 degrees warm
my other akkus with this powerrange are greater and hevier- about 30 gramms hevier but has not the power like this and the also have 2200 mah 20 C discharge rate
and the great plus of this akku is that it is very little
i think that the battery in every helicopter find his place

I was looking a little battery for my little rc helicopter that gives it a little more autonomy, and this is the perfect one for it. I tried it and the battery autonomy is around 5-7 min longer that the original battery. It's a good battery for this price.