Charging requirements: 100-240V 50 / 60HZ ●Charging temperature: -10 degree centigrade --50 degree centigrade ●The best charge temperature is 0 degree centigrade ~50 degree centigrade . Over cold and over heat will not completely full of battery. ●Tested before shipped， 100% qualified Product Descriptions: Features: Charging temperature: -10 C--50 C Charging requirements: 100-240V 50 / 60Hz Battery: 36V 2.2Ah / 4.4Ah Note The best charge temperature is 0C~50C. Over cold and over heat will not completely full of battery. Package Include: 1x Charger



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