Pulsar's APS 2 Battery Pack is designed to power the Thermion Thermal Riflescope for up to 5 hours on a single charge. 
Battery Used
Features
- Rechargeable lithium-ion battery
- 2000 mAH capacity
- Designed to power Thermion / Digex and Digex IR Illuminators
Specs
| Battery Type | Li-Ion | 
| Rated Capacity (MilliAmpere-hour Rating), Ah | 2,000 | 
| Charging Voltage, V | 3.7 | 
| Battery charge indication | Yes | 
| Pin type for battery charger | microUSB | 
| Body Material | Plastic | 
| Operating Temperature | -4 to 140 / -20 to 60 F / C | 
| Length | 2.3 / 59 in / mm | 
| Width | .94 / 24 in / mm | 
| Height | .94 / 24 in / mm | 
| Weight, oz | 1.4 |