cycling practices with small direct load

[career2]

I'm curious if anyone sees fatal flaws in this practice:

System, off grid:
Inverter- EG4 6000XP (one); batteries- EG4 Lifepo4 48V 100AH (two) w/ closed loop comms; panels- 355W, 47V (six);
Climate- central California coast (no freezing);

Primary use: periodic charging of EV (Chevy Bolt).
Secondary use: run a tiny, 12V, 3 amp, water pump in a fountain

My system is too small to charge my depleted car in one charge. I work around this by not letting the car get too depleted, and doing 2 or 3 charge sessions each week. It seems to be working great. At each session the solar batteries are taken down to about 25% SOC.

The little water pump is powered directly from the batteries (thru a DC converter). This seems to cause quite a few "micro" charge cycles on any given day. You can barely see them showing on the graph (pink line). It might be about 20 times a day, cycling between 99-100%.

Does this seem detrimental to the batteries or the BMS?

From what I've read in these forums it seems like the calendar generally governs battery life. Could all this micro cycling change that?
Thanks ahead of time,
Jeff

 

[sunshine_eggo]

Does this seem detrimental to the batteries or the BMS?

No.

From what I've read in these forums it seems like the calendar generally governs battery life. Could all this micro cycling change that?

No.

You're just giving the battery little tickles.