Pulsar APS 3 Battery Pack (PL79161) is a compact, rechargeable lithium-ion power source designed for use with Pulsar Axion, Thermion, and Digex devices. These miniature batteries provide reliable performance and can be quickly swapped in the field for extended operation. Battery type: Lithium-ion (Li-Ion) Output voltage: 3.6 V Battery charge indication: Yes Designed to power: Axion / Thermion / Digex models Battery life: 6–8 hours in Thermion, 4 hours in Axion Body material: Plastic Operating temperature: -4 to 140 °F / -20 to 60 °C Pulsar APS 3 Battery Pack PL79161