You can effortlessly prolong battery life by frequently checking its voltage. Measuring 1-cell for Walkera/Novus and 3-6 cell for Trex450/600 helis, this one step plug & test meter is accurate and much easier to use than most cumbersome voltage meters.

This is a battery meter with built-in low voltage alarm can also be installed on board helicopters. At low voltages, a led will light up and the double buzzers will also sound a warning for pilots who are too far from the helicopter to prevent crashes.

It's time to retire those old "AA" batteries. This is the smartest new solution to charge up your Walkera transmitter radio. No more guess work on 8 "AA" batteries with iffy connections in a tray. Everything is consolidated into one simple reliable unit.

220V version- Please becareful not to order this item if you are located in USA. This is a standard balance charger for 2-cell (7.4V) & 3-cell (11.1V) LiPo batteries which includes a balancer for the battery & a power supply that plugs into a 220V socket.

This is a standard balance charger for 2-cell (7.4V) & 3-cell (11.1V) LiPo batteries which includes a balancer for the battery & a power supply that plugs into a standard 110V wall socket.

Radio transmitter hands free neck strap. Total length 45 inches.