This is the Traxxas Power Cell 11.1V 5000mAh 25C 3S LiPo Battery.

FEATURES: Semi rigid construction does not require a hard case and eliminates wire harness connectors that can loosen and fail Engineered specifically to fit Traxxas models New high current connector with gold-plated copper terminals and integrated balance connector iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings for specific battery MAXX cable high-efficiency 12 gauge silicone jacketed wire

INCLUDES: Traxxas Power Cell 11.1V 5000mAh 25C LiPo 3S Battery with High Current Connector and Integrated Balance Plug

REQUIRES: LiPo compatible charger such as the Traxxas EZ-Peak Plus, TRAP2970 LiPo charging bag

SPECS: Configuration: 3S1P Continuous Discharge: 25C (125A) Max Burst Rate: 50C (250A) Watt Hours: 55.5 Charge Rate: 1C (5A) Max Charge Rate: 2C (10A) Dimensions: 6.1 x 1.02 x 1.7" (155 x 26 x 44mm) Weight: 13.3oz (376g)

COMMENTS: ALWAYS use a LiPo-approved Charger ALWAYS use a LiPo Cell Balancer NEVER Charge over 4.20V per cell NEVER Charge at currents greater than 1C 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