Sealed Lead Rechargeable Battery, 2V, 2.5AH. 'D' size cell. Non spillable. Made in USA.
This cell is used in some hobby devices like the Glow Bee Glow Ignighter. May be used in arrays to make 6 or 12V power supplies.

• Voltage: 2 Volts
• Capacity: 2.5 Ah
• Chemistry: Sealed Lead Acid
• Dimensions: Diameter 1.35"(34.3mm) x Height 2.41"(61.2mm) [Height with Terminals 2.68"(68.1mm)]
• Internal Resistance: 5MΩ (megaohms) 
• Short Circuit Current: 400A
• Weight: .39 lbs/6.3oz
• Termination: F1 (.187" Quick Disconnect Tabs)