With the Fly Pro M3 PRCS Elite charger, you will spend more time flying, you will save money on purchasing batteries, and you will spend less time charging batteries. The M2 PRCS Elite system charges up to four (4) batteries and one (1) flight controller simultaneously in record time! The charging system is designed to be powered from diverse power sources ranging from pure sine wave to modified sine wave, often provided by inverters and generators. It features CDC Intelligent Charging which includes current, voltage and temperature management for safety and speed .Charger system details Proprietary charging algorithms Built-in power supply100% duty cycle Multi-fan cooling CDC Intelligent Charging current, voltage & temperature management Compatible with M2 Intelligent Flight batteries Protective hard caseIP65-ratedWatertightDustproofImpact resistant Pressure release valve ~ easy open Battery compatibility and charge times Four (4) M2 Intelligent Flight batteries*Average charging times with nominal cooling: 20% to 90% in 45 min. and 98+% in 60 min.*Batteries not included with charger