SPMX223S50 
Pilots and drivers enjoy more Smart benefits with Spektrum™ Smart G2 50C LiPos. Not only are charging parameters and performance data stored and uploaded automatically to Smart chargers, but no balance lead is needed — just one easy IC® connection!
Powerful 50C continuous discharge rating to deliver high performance and longevity
Balance charge through the IC3® or IC5® connector data wire — with only one connection, no balance lead required
Faster Auto Discharge at up to 1.5A to safe storage voltage for long battery life and improved performance
Integrated microchip stores unique parameters for each battery
Spektrum Smart Charger Required