Compatible with thermal imaging monoculars Proton, Axion XQ38 and Axion LRF XQ38. Miniature power elements used in Axion XM, Axion XQ, Digex and Thermion models provide sufficient operation time and can be quickly replaced. B-Pack mini batteries can be quickly charged either with included charger station or in the unit connected to USB.      APS 2 APS 3 APS 5 Weight &