About this item 7.6V 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 minutes RECHARGEABLE: Equipped with protection mechanism for safe charging and use; recharge hundreds of times LITHIUM POWERPLANT: Lightweight technology increases RC drone performance ONE YEAR MANUFACTURER WARRANTY: US based customer service and technical support, 100% satisfaction guarantee