MAX Powersaving for Solar Node to prevent shutdown, Setting:

to prevent Brownout:
If a solar node is about to brown out in winter time or by other temporary reasons.
voltage going below 30%
would these be the settings to usa as little as possible energy?:

hardware; Wisblock 4631, directly attached to battery (2000-8000mAh) and small solar panel.
role :router
Admin Channel functional, administration by admin channel.
disable BLE (not needed, usually disabled)
remove (or change PSK) Public Channel
Device/ rebroadcast mode: Local_only
device info every 2-10 Days
no position info.

that way it would not repeat any messages exept Admin channel.
send less than 1 message / day.
would still be reachable and administable by admin channel
there should not be any others devices sending into this particular admin channel.
so a particular admin channel just for this node…
that way it would probably need only around 160mAh /day…
in usual use as router repeating messages it would be 250+mAh

any other ideas ?

are there some sleep options possible,?
only wakeup every 10 minutes for 1 minute to enable new config?