This is the 3.7V 400mAh 1S LiPo Battery for the / HeliMax Novus AH-1J SeaCobra Helicopter, HMXE0805. / / FEATURES: Pre-installed connector / / INCLUDES: 3.7V 400mAh 1S LiPo Battery / / REQUIRES: Installation in the helicopter and charging only with included / battery charger, HMXP2019 / / SPECS: Length: 1.3" (33mm) / Width: 0.98" (25mm) / Thickness: 0.33" (8.5mm) / Weight: 0.35oz (10g) / Capacity: 400mAh / Voltage: 3.7V / / COMMENTS: Charge this battery only with charger included with heli / Never charge in excess of 4.20V per cell. / If the battery should become damaged, discard the battery. Do not / attempt to use a damaged battery. / Do not leave the charger unattended while charging. Disconnect the / battery and remove input power from the charger immediately if / either becomes hot! However, it is normal for the charger to get / warm. / Disconnect the battery from the charger and carefully move the / battery to a fireproof location if the battery begins to swell or / smoke! / Never charge at currents greater than 1C. / Always charge in a fireproof location. / Never trickle charge. / Never allow the battery temperature to exceed 150° F (65° C). / Never disassemble or modify pack wiring in any way or puncture cells.