It is not the issue you make it out to be.
The rear slides are hydraulic, the pump is running it makes no difference that two are opening at the same time. the pump is running things are moving.
If you are really running out of battery, better put some decent juice in it.
Couple golf car batterys fit in original battery box in our 3811, and quadrupled the reserve capacity.
2020 AT4 3500 SRW Duramax SB
2018 Denali Duramax crew (traded)
2018.5 Montana 3811MS Legacy
Lippert AirRide pinbox / PullRite SuperLight hitch