This is a general purpose battery , these are rechargeable, highly efficient, leak proof and Maintenance-Free Operation.Stable Quality & High Reliability.These batteries are well-known for stable and reliable performance. The battery can withstand overcharge, over discharge, vibration and shocks. It is also capable of extended storage.The construction and sealing technique guarantees that no electrolyte leakage can occur from the terminals or case. These batteries are classified as "Non-Spillable".This rechargeable fan battery with 12V 4.5Ah Ctype lead-acid battery can last up to 45 hours/LED Fan: 3 hours/high 5 hours/low, Charge Time: 12-15hours. Please charge properly before you use it for efficiency and rugged sake. It is also one of the most rugged 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 12V batteries. It can work with any rechargeable fan that uses 12v 4.5ah.This is a general purpose battery , these are rechargeable, highly efficient, leak proof and Maintenance-Free Operation.Stable Quality & High Reliability.These batteries are well-known for stable and reliable performance. The battery can withstand overcharge, over discharge, vibration and shocks. It is also capable of extended storage.The construction and sealing technique guarantees that no electrolyte leakage can occur from the terminals or case. These batteries are classified as "Non-Spillable".This rechargeable fan battery with 12V 4.5Ah Ctype lead-acid battery can last up to 45 hours/LED Fan: 3 hours/high 5 hours/low, Charge Time: 12-15hours. Please charge properly before you use it for efficiency and rugged sake. It is also one of the most rugged 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 12V batteries. It can work with any rechargeable fan that uses 12v 4.5ah.This is a general purpose battery , these are rechargeable, highly efficient, leak proof and Maintenance-Free Operation.Stable Quality & High Reliability.These batteries are well-known for stable and reliable performance. The battery can withstand overcharge, over discharge, vibration and shocks. It is also capable of extended storage.The construction and sealing technique guarantees that no electrolyte leakage can occur from the terminals or case. These batteries are classified as "Non-Spillable".This rechargeable fan battery with 12V 4.5Ah Ctype lead-acid battery can last up to 45 hours/LED Fan: 3 hours/high 5 hours/low, Charge Time: 12-15hours. Please charge properly before you use it for efficiency and rugged sake. It is also one of the most rugged 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 12V batteries. It can work with any rechargeable fan that uses 12v 4.5ah.