This is a Traxxas Rear Axle Housing, L/R Axle Support and Rear Axle Hub Set for the Unlimited Desert Racer.

When a Spektrum Smart LiPo battery is connected to a Spektrum Smart charger, unique parameters and health of that Smart LiPo battery upload from the Smart memory microchip integrated into the battery.

Specs:Application: AircraftBattery Balance Connector: JST/XH Battery Type: LiPo Battery Voltage: 7.4V Capacity: 5000mAh Cell Configuration: 2S1P Charge Protection Circuitry: Yes Height: 0.98"Length: 5.4" Weight: 0.56lbs Width: 1.8" Wire Gauge: 12 AWG

Spektrum 11.1V 5000mAh 3S 50C Smart LiPo G2 Hard Case for IC5 SPMX53S50H5

Spektrum 7.4V 5000mAh 2S 30C Smart LiPo G2 Hard Case for IC5 SPMX52S30H5

The Spektrum RC 4S Smart G2 LiPo 50C Battery Pack with IC5 Connector provides pilots and drivers with an array of Smart benefits; charging parameters and performance data stored and uploaded automatically to Smart chargers

Spektrum 8000mAh 2S 7.6V 100C Smart HV LiPo Battery SPMX80002S100HT [SPMX80002S100HT] | Cars & Trucks

11.1V 1300mAh 3S 30C Smart G2 LiPo Battery: IC3

This is the Traxxas SERIES 5 5000mAh 9.6V 8C Hump NiMH with iD Technology.

This is the Traxxas SERIES 1 1200mAh 7.2V 6C Flat 2/3A NiMH with iD Technology.

This is the Traxxas 3000mAh 8.4V 7C Flat NiMH with iD Technology.

This is the Traxxas SERIES 4 4200mAh 8.4V 7C Flat NiMH with iD Technology TRA2940X.