This is the FlightPower FP30 series 3S 11.1V 1800mAh 30C LiPo Battery.
FEATURES
Most powerful cells and longest cycle life of any LiPo battery-
300+ cycles without noticeable drop in cell performance
Star plug is compatible with the R/C industry's most commonly used
polarized power plug, tapered shape and grip strips for fast and
easy connection and separation
Superior cell matching, and strict quality control backed by top-
notch support
Uses the industry's most common "XH" balancing plug
Cell tabs and balancing wire connections are ultra-sonically welded
for rock-solid reliability
Two year limited warranty beginning at date of purchase
INCLUDES
FlightPower FP30 series 3S 11.1V 1800mAh 30C LiPo Battery with Star
Plug and XH Balancing Plug
REQUIREMENTS
LiPo compatible charger and balancer such as the Great Planes
ElectrFly TritonEQ, Triton2 EQ, and the TrakPower VR-1
LiPo charging sack
SPECIFICATIONS

4.06 x 1.38 x 0.83" (103 x 35 x 21mm)
Weight: 5.47oz (155g)
Watt Hours: 20.0
Continuous Discharge: 30C
Burst Discharge: 60C
Maximum Charge Rate: 3C
Connector: Star plug
COMMENTS
ALWAYS use a LiPo-approved Charger
ALWAYS use a LiPo Cell Balancer or Charger with Cell Balancer
NEVER Charge over 4.20V per cell
NEVER Charge at currents greater than 3C
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