No immediate plans to go 24v, but still interested. A couple years ago I was trying out 24v battery with a 24v solar panel for some comparison tests I posted about back then. Also 2oldman was posting about his RV's 24v set-up (since changed to 48v ISTR.)
There were some advantages and disadvantages. One was not having a 24v battery charger. I now am wondering if I actually do have a 24v charger by using two 12v chargers as described above. Never thought of it before seeing that ad in the OP.
(Other issues remain like a 24v inverter, getting 12v to run the rig, etc. All been discussed at length in past threads)
I just don't know enough electricity to figure out how it would come out using my chargers. Still not sure I have the answer.