This is the Venom Li-Power Series 5S 1P 18.5V 3600mAh LiPo Battery. FEATURES: Balance connector INCLUDES: One Venom Li-Power Series 5S 1P 18.5V 3600mAh LiPo Battery REQUIRES: A LiPo compatible charger with balancing capabilities SPECS: Length: 5.25" (133.5mm) Width: 1.67" (42.5mm) Height: 1.54" (39mm) Weight: 16.9oz (479.11g) Charge Rate: 3.6A (1C) Max Volts Per Cell: 4.2V Max Pack Voltage: 21V Min Discharge Volts: 15V Continuous Discharge: 25C (90A) Max Burst Rate: 35C (126A) COMMENTS: READ the ENTIRE instructions printed inside header card before use 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 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 Venom RacingPart VNR15017