GPX310 Scion Rechargeable Battery Kit Allows you to operate the Scion thermal imaging monoculars for up to 10 hours, and its high-capacity 8.5 Ah battery pack features a smart fuel gauge that displays on-screen battery life when the unit is on. The added electronics protection helps prevent battery-related safety incidents. Specifications: Number of Cells: 3 Configuration: Parallel Total Capacity: 8.5 Ah; 32W Total Voltage: 3.7 VDC Operating Temperature: -22 to 104AdegF (-30 to 40AdegC) Storage Temperature: -40 to 158AdegF (-40 to 70AdegC) Quick Guide (pdf)