This is the Duratrax Onyx 11.1V 1300mAh 25C Soft Case LiPo Battery with the Deans Ultra Connector. FEATURES: Ideal for 1/16 scale car applications Prewired with Deans Ultra connector INCLUDES: 11.1V 1300mAh 25C Soft Case LiPo Battery with Deans Ultra Connector REQUIRES: Balancer and LiPo compatible charger or LiPo charger with built-in balancer such as the Onyx 235, DTXP4235 SPECS: Voltage Rating: 11.1V Rated Capacity: 1300mAh Discharge Rating: 25C continuous Dimensions: 1.3 x 0.62 x 3.5" (33 x 16 x 90mm) Weight: 3.8oz (108g) Discharge Lead/Connectors: 14AWG Wires 3.9" (100mm), Deans Ultra plug Balancing Connector: ElectriFly Watt Hours: 14Wh COMMENTS: 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 05/22/12 ir/jxs