About this item7.6V 1500MAH LI-PO BATTERY: High-rate rechargeable drone battery for Contixo F30 and Holy Stone HS510.EXTRA FLIGHT TIME: Adds 16 minutes flying time, charging time between 60-240 minutesRECHARGEABLE: Equipped with protection mechanism for safe charging and use; recharge hundreds of timesLITHIUM POWERPLANT: Lightweight technology increases RC drone performanceONE YEAR MANUFACTURER WARRANTY: US based customer service and technical support, 100% satisfaction guarantee