It's a 12V 12Ah Sealed Lead Acid Battery. A 12V 12Ah sealed lead-acid battery is a type of rechargeable battery commonly used in various applications such as uninterruptible power supply (UPS) systems‚ emergency lighting‚ security systems‚ and small electric vehicles. The battery has a nominal voltage of 12 volts. This means it is designed to provide a steady voltage of 12 volts during normal operation. However‚ the actual voltage can vary depending on the battery's charge level. The battery has a capacity of 12 ampere-hours (Ah). This indicates how much electrical charge the battery can store and deliver. In simple terms‚ it represents the battery's energy storage capacity. A higher Ah rating means the battery can provide power for a longer duration before needing to be recharged.