Lithium Ion Battery 18650 3.7 Volt Rechargeable

Features:

• High capacity replacement batteries for ATAK™ brand (and many other) rechargeable flashlights
• No memory effect - recharge up to 1200 times whether fully or partially drained
• Built-in circuit protection to ensure proper venting, prevent overcharge or discharge
• Capacity: 2600mAh; Voltage: 3.7V; Battery Size: 2.62" x .72" (69.2mm x 18.3mm)