It could be done There are a lot of trucks and buses that use 24 volt systems that use a step down transformers to reduce 24 to 12 volt but there are a lot of disadvantages
weight
trying to find a 24 volt charger is tough
if the$1500 battery goes bad can you get another one for free
Only advantage I see would be how long your baterry would stay charged
possible yes, good ideal I don't think so
Just my opinion and I've never been accused of being the sharpest tool in shed
Mike
Lake Fork Texas