270wh I 3.7V Pure-sine wave Solar Portable Generator I 300w continuous output 600w Peak UPS Battery Emergency Backup Power Source Supply Charged by Solar Panels 4 USB 2.1ACategory: Power Supply Ups BatteryPure sine WaveThe unit is built-in pure sine wave inverter, which means it produces an output that is exactly the same as supplied by an AC wall plug in your house. it produced power output that make is compatible with almost all AC electric devices you use in your houseSmart &Silent cooling FanBuilt-in Smart &Silent Cooling Fan system, Smart Fan control with automatically turn on the fan when the unit is hotter to maintain the unit at the constant temperature without running the fan constantly. The working noise is less than 31.7dBA. Li-polymer Battery (with NANO ceramic diaphragm)Built -in high temperature resistance withNano Tec ceramic diaphragm Li-polymer batteries. Feature high strength, piercing resistance. Long service life, the temperature can reach 75 degree Celsius and above deformation. 300watt AC continuous power outputBuilt in AC power output, provides continuous DC to pure sine wave AC to power up major household appliances. Quick Recharging DC input 11.6~24Vm up to4.6A Max Fully charged in 7 hoursDual DC output (DC OUTPUT 12v/15A Max )Able to power up 2 electrical tools at the same time4x USB 2.1 A Output Able to charge4 devices at onetime. USB 5V/2.1Aexcellent compatibility with smart phones, tablets, digital camerasPower up household appliancesHome appliances: TV, refrigerator, washing machine, cleaner, juicing machine, computer, eclectic fan, DVD and on vehicle kits, speaker, etcPower up DronesTake care of your LI-PO Drone batteries. charge them anywhere with a portable solar generator, which is light weight to carry and built in high power density lithium batteries. What is MPPT technology? (ultra high charging efficiency smart collecting much more power from the sun)This Unit is designed to support charging by solar panel, it's built- in MPPT (maximum power point tracking) technique, which is designed to use with wind turbines and photovoltaic (PV) solar systems to maximize power extraction under all conditions. with MPPT technology, the unit can compare the output of the solar panels to the battery voltage. it then figures out what is the best power that the panel can put out to charge the battery. and help the unit get maximum AMPS from the solar panels.