This is the TrakPower 7.4V 5400mAh 60C LiPo Saddle Pack. FEATURES: Ideal for 1/10 scale off-road 4WD buggies INCLUDES: Two 3.7V Modules, Jumper Lead with 4mm Male Bullets to wire the two modules in series and 2mm Female Bullet for Balancing REQUIRES: LiPo compatible charger and balancer SPECS: Rated Pack Voltage: 7.4V (each module is 3.7V) Capacity: 5400mAh Max Recommended Charge Current: 1C (5.4A) Continuous Discharge: 60C (336 amps) Watt Hours: 40 Pack Dimensions: 0.9 x 1.8 x 2.7" (25.1 x 47 x 69mm) each module Weight: 11.3oz (321g) Discharge Connector: 4mm Female Bullets Balance Connector: 2.5mm Female Bullet located on jumper wire 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 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 jxs 09/26/11 ir/jxs