As I have experienced before, I am having unnecessary system suspends when on battery on my Thinkpad P1. System logs look like this:

Jan 14 12:33:35 [NetworkManager] <info>  [1579030415.0301] manager: sleep: sleep requested (sleeping: no  enabled: yes)
Jan 14 12:33:35 [NetworkManager] <info>  [1579030415.0304] device (p2p-dev-wlan0): state change: disconnected -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
Jan 14 12:33:35 [NetworkManager] <info>  [1579030415.0318] manager: NetworkManager state is now ASLEEP
Jan 14 12:33:36 [kernel] [ 1835.342149] elogind-daemon[3318]: Suspending system...
Jan 14 12:33:36 [kernel] [ 1835.342172] PM: suspend entry (deep)
Jan 14 12:33:36 [kernel] [ 1835.342175] PM: Syncing filesystems ... done.

I am not idle so this should not be happening. I have tracked down an issue like this before but need to do more troubleshooting to figure out why it is happening now.

The most annoying thing about this is that it is INTERMITTENT. Meaning sometimes I boot my laptop on battery and do not have this problem at all, after multiple hours. But sometimes I boot my laptop on battery and it seems I have this problem. Maybe I need to do more testing to see if I simply suspend my laptop on AC power and then have this problem when I resume on battery? In any case, if it happens, it seems to happen again and again on the same boot. But it's not happening every 5 minutes. Maybe every 20 or 30 minutes?