No need to throw your Rechargeable Fans away when they no longer stay for longer hours without electricity. It is simply due to a worn out battery. This replacement battery will rejuvenate your Rechargeable Fans again. . Now you have gotten one to use. This backup battery is designed to fit most Brand of and Duravolt Fans. It can also be used for Generators, Rechargeable Fans, CCTV Power boxes and any type of product that requires a 6V battery. Do note that you must be sure your Fan uses this type of battery first before purchasing. and also check terminals are pin type and not the pull type. It is sealed Lead battery and it is never spillable. It has a long life of use and can do over 600 circles. Ensure you check your fan to know the voltage rating. If your fan uses 2 units of a 6 volts battery.Rechargeable fan, UPS battery with 6V 5Ah Ctype lead-acid battery. It can last up to 45 hours/LED Fan and 3 hours/high 5 hours/low, Charge Time: 12-15hours. It is a high quality battery that stand a test of ages and widely used all over the world. It is very strong and durable. It is user's friendly. Charge properly before use for efficiency and for long lasting. It is also one of the most used batteries ever produced. It's reliable, dependable and efficient. It can also be used for various rechargeable lamps, toy cars, toy bicycles, etc that uses 6V batteries. It can work with any rechargeable fan that uses 6v 5ah.