Someone posted a while back about using an inverter with the Volt and IIRC posted the link to this one: https://smile.amazon.com/dp/B07T2GNHQM/?coliid=INIO5R0CDFUKW&colid=3IEN4PCTO7GYG&psc=1&ref_=lv_ov_lig_dp_it

Or I could be remembering it wrong and just found that one myself. But it seems to be well rated and its overvolt protection does go up to 16v. Either way, it's been sitting in my amazon wishlist for a few months now waiting for me to have a good enough reason to buy it.