NETGEAR Nighthawk M6 5G Mobile Hotspot & AX3600 Dual-Band Wi-Fi Router (Unlocked) - Manual (Page 66)

Battery specifications
Battery specifications:
• Removable Li-ion battery
• Up to 9 hours of continuous usage
NOTE: 9+ hour battery life is achieved by the following heaviest case:
stream YouTube for 1 hour, followed by 30 minutes of idle time, and then
repeat for over 9 hours.
User Manual 66 Specifications
Nighthawk M6