Description This is an original lithium battery charger for Seagull, Bison, Tornado. The charger case is made of PS/ABS material, high-temperature resistance, fire retardant, safe and durable, and also helps heat dissipation. FEATURES Compatibility: Seagull, Bison, Tornado. Input Characteristics : Nominal Voltage: 100-240VAC Variation Voltage: 90-264VAC Nominal Frequency: 50-60Hz, Variation Frequency:47-63Hz Current: 2.0A Output Characteristics: Voltage:DC 54.6V Current: 2.0A Indication Light: red light when charging, green light when fully charged. Power Cord: 5 inches in length. Charger plug: Female DC interface, 5.5mm (0.21inch, outside diameter) x 2.1mm(0.08in, inner diameter) x10mm(0.39inch). Protection £ºShort Circuit Protection, Overcurrent Protection, Over Voltage Protection, Battery polarity error protection. NOTE Please first connect the plug to the battery, and then connect the charger to an AC outlet. When the battery is charging, it is normal that the charger is getting hot. Specifically designed for lithium batteries, not for lead-acid batteries. Do not operate the charger if damaged. The charger is only suitable for 48V batteries and not for 36V batteries or lower. We send them to you by USPS, please write the right shipping address.