Pulsar PL79181 APS 5 Battery Pack Black 3.7 Volt 4,900 mAh Fits Axion XQ/Proton XQ

APS 5 rechargeable lithium-ion power supplies are designed for use with Pulsar thermal imaging devices. APS 5 batteries support USB power delivery fast charging technology when using a standard charging set (charger, USB Type-C cable, power adapter).The rechargeable battery can be used separately or with a battery-locking cover for Axion XQ/LRF XQ, Axion 2, Proton devices. Always use the APS 5 charger supplied with the device (or purchased separately) to charge APS 5 batteries.