Pulsar APS Battery Charger, Charges APS 2 & APS 3 Battery Packs, Black PL79165 The Pulsar APS battery charger is designed to charge battery packs APS 2 and APS 3 used with thermal imaging riflescopes Thermion" digital night vision riflescopes Digex" infrared illuminators Digex-X and thermal imaging monocular Axion XM / Axion Key XM.