3.7V Lipo Battery 450mAh 25C RC Drone Batteries with 5-in-1 Charger Molex Plug Compatible with Most SYMA and Holystone Quadcopters, Aircraft Models and Mini RC Drones 5PCS

Outlast my 600mah batteries in the exact same application, same draw and same age. They charge quickly and cool, easy to connect to the included charger and well made.

They do not work for on Holy Stone HS210 they are too big and they can't connect to the small drone.they work very well with Hubson X4 Quadcopter.

Drone only came with 1 charger and 2 battery.This is perfect for the kids to play non stop

Can't review it by now, not in use yet, Good price

Batteries work well.

When I first purchased, one of the batteries seemed to have less capacity than the others and my RC plane could never reach full speed with it. The remainder had way more capacity and flight time than other batteries I've tried like UrgenX and the stock batteries so I didn't complain. After a month or so, with up to 8 flights per battery, I'm down to one battery that can fully charge and allow my plane to fly at full speed. I got some advanced chargers to measure performance and see that all but one of these batteries are able to charge to at or over 3.7V, even when applying up to 4.2 V to charge, they stop taking current. I was careful remove the batteries immediately from the RC plane after each use to prevent over discharge, so I am a bit disappointed, but they were better than others I've tried so far from Amazon.

-400/410mmWar bird brush motor planes fly really well on theses! Love the fact they are so small andLight yet have good run time andPlenty of zip -price is good and fast shipping -very nice battery !!! I will buy more !

Poor description of connectionsNeed to specify typeNot usable