APS 5T rechargeable lithium-ion power supplies are designed for use with thermal imaging riflescopes Pulsar Talion.APS 5T batteries support USB Power Delivery fast charging technology when using a standard charging set (charger, USB Type-C cable, power adapter). Series Battery Pack Includes Battery/Operating Manual/Warranty Card Nominal Voltage 3.7V Rated Capacity Mah 4900 Chemical Composition Li-Ion