In my opinion (no idea)

The answer is no, because the delta max 2000 is already a whole separate battery.

However, it is possible on the Delta Max to adjust the charging gap.

This means that you can use your delta 2 to recharge your delta max 2000.

However, according to the instructions for use, if the station is charging when you use it, you are limited to a certain power (in the case of charging by solar panel).

Nothing precise for this use

That's why I suggest you use it for 1 day, then recharge it and use it on the second day.

Finally, on the delta max model, the auxiliary stations are designed for network use only and come at an attractive price.

I wish you an excellent day 😁