This small tool can be used on low flying helicopter.
if you are the beginner of a helicopter with lipo battery, you can not missed this small tool. this is a lipo battery content alarm. This small tool can be used on low flying helicopter.Connect it to the lipo battery charging slot and fixed it on the outside of the helicopter.When the battery power is low, the red lights are on and before that the lights will be green.As soon as you find that the lights turn from red to green, you must take off your helicopter immediately. or you will have the risk that your new helicopter drops on the ground and crashed before you know when you fly it.Except red lights, this alarm also has a alarm sound when the battery power is lowThis battery power alarm are only used for 7.4-11.1 lipo batteryMOQ:10pcs
mt-chu4 battery power alarm
