BATTERY BOLT-12V 1.3MAH

That looks like a standard Sealed Lead Acid (SLA) battery, often found in UPS systems, alarm panels, or small electric vehicles. Based on the label in the photo, here is the breakdown of what you're holding and how to handle it safely.
​Battery Specifications
​The text on the side gives us the vital "vitals" of this battery:
​Voltage: 12V (Standard for most small electronics).
​Capacity: 1.3AH (Amp-Hours). This means it can theoretically provide 1.3 Amps for one hour, or a smaller current for a longer time.
​Chemistry: Sealed Lead Acid (SLA). These are "maintenance-free," meaning you don't need to add water like old-school car batteries.
​Type: 6FM1.3. The "6" usually indicates it has 6 internal cells (each cell is roughly 2V).