The Pulsar LPS 7i rechargeable lithium-ion power supplies are designed for use with Pulsar Telos thermal imaging devices. Batteries support USB Power Delivery fast charging technology when using a standard charging set from Pulsar (USB Type-C cable, power adapter). LPS 7i batteries also support wireless charging. Part Number PL79187 Features: Output voltage, V: 3.7Battery type: Li-IonCapacity, mAh: 6400Fits Telos XP50, XP50 LRF Specifications: Type Li-Ion Nominal capacity at +22°? (72°F), mAh 6400 Rated output voltage, V 3.7 Input voltage/charge rate (wired charging) PPS 6-8.5 V ? 3 A; 5 V ? 3 A Charge/discharge cycles, minimum* 300 Charge/discharge ambient temperature, °? (°F) 0...+35/- 25...+50 (+32…+95/- 13…+122) Dimensions, mm / inch 79?31?43 / 3.11x1.22x1.69 Weight, kg / oz 0.13 / 4.59 * Once reached the specified limit, the battery capacity may drop to 80%. This is normal and not a defect.