I don't think the jumper pack you have has enough juice and it is probably super heavy. I have one of these that is only 10 lbs. https://www.amazon.com/LiFePO4-Battery-Cycles-Miady-Rechargeable/dp/B08MJW69N3/ref=pd_lpo_263_t_1/137-4954110-3827360?_encoding=UTF8&pd_rd_i=B08MJW69N3&pd_rd_r=f648da54-b899-46fa-b039-eb6bc5ad94ac&pd_rd_w=hY4m9&pd_rd_wg=982T2&pf_rd_p=2eae1586-a44a-4b21-997a-1dfc1740e496&pf_rd_r=EF30J259AZV7WSK7QBRB&psc=1&refRID=EF30J259AZV7WSK7QBRB

Pair it with an inverter from harbor freight (400 watt) and your AC charger.