Mainitaining e-tense 4WD capability in low battery condition

Hello everyone,
I’d like to ask about 4WD mode maintaining capability in low battery condition.
If go to snowing mountain or nearly case with very slippy road, I may be counting on 4WD mode.
But if before reach to their, battery runs out or very low capacity, is it possible to continue to use the function stably under such conditions?