The “uptime” load average looks quite high. As suggested by @Johnex earlier in this thread, run “top” in SSH and post a screenshot to see what is hogging the CPU:
How crazy? e.g. How long does it totally drain the battery?
I left on only one 5GHz network with wpa3 security and connected it to my main router as a repeater and just left it disconnected from the charger at 10 AM. No vpn enabled, no clients connected. Somewhere in the middle of the day I noticed that it lost about half of the charge and switched to standby. At 7 or 8 pm the battery was at 1%. I might do more precise experiment, its that I didn’t expect that non-loaded router will be dead that fast, especially in standby. My older netgear mifi which is twice smaller in size was alive more than 20 hours slightly loaded, and I didn’t expect standby to have basically no effect on the drain speed.
Looks like switching to 2.4GHz/wpa2 made it live longer, want to do precise measurements later.
This is totally normal. More than expected.
Small mifi devices work differently