Standard OEM AGM Rechargeable Li-ion 18650 Battery:

• (1) 18650 Battery
  
• Rechargeable
• Capacity: 3200 mAh
• Voltage: 3.6 V
• 69.5mm
• Button Top

Fits these models and more, will also work in many other thermal optics:

• Adder V2
• Spectrum 4K
• Varmint
• Seeker
• Sidewinder
• Taipan V2
• ReachIR LRF
• OvservIR
• Neith
• Fuzion

***Please be sure this battery fits the optic you intend to use it in before purchasing, if you don't know for sure we will be happy to help you figure out what battery you need or make recommendations on what battery is best to use in your optic.  Also, AGM periodically changes the appearance of these batteries so the battery you get will be whatever the newest look they are sending out to dealers is.