Before I decided to go with a 48 volt battery I pick up this 24 volt to 12 volt converter to build out my system. I paid $84... yours for $75
https://www.amazon.com/gp/product/B07X864177/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07X864177/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1