This is the Duratrax Onyx 2S 7.4V 2000mAh 35C Soft Case LiPo Battery with the TRA Connector. Ideal for 1/16 scale car applications Prewired with TRA style connector 7.4V 2000mAh 35C Soft Case LiPo Battery with TRA Connector Balancer and LiPo compatible charger or LiPo charger with built-in balancer such as the Onyx 235, DTXP4235 Voltage Rating: 7.4V Rated Capacity: 2000mAh Discharge Rating: 35C continuous 1.3 x 0.63 x 3.6" (33 x 16 x 91mm) Weight: 3.9oz (110g) Discharge Lead/Connectors: 14AWG Wires 3.9" (100mm), TRA plug Balancing Connector: ElectriFly Watt Hours: 15Wh ALWAYS use a LiPo-approved Charger ALWAYS use a LiPo Cell Balancer NEVER Charge over 4.2V per cell NEVER Charge at currents greater than 1C NEVER Charge through the "To ESC or "DISCHARGE" lead NEVER Trickle Charge NEVER allow to Discharge below 2.5V per cell NEVER disassemble or modify pack wiring in any way or puncture cells NEVER place on combustible materials or leave unattended during charging ALWAYS Charge in a fireproof location ALWAYS set charger's output volts to match battery volts ALWAYS keep out of reach of children All weights include wire leads and plugs All weights +/- 1 g All measurements +/- 1 mm jxs 06/24/13 ir/jxs &