Battery drain

If a new battery -- assuming it tests as "good" -- fails, I'd look at other functions of the electrical system including the charging system -- are they working as they should to recharge then battery as needed? Additionally, is anything drawing power from the battery when the vehicle is inactive? If something stays powered after you leave the vehicle, then perhaps this is a draw that needs to be resolved. Either way, some hands on troubleshooting is needed. www.repairpal.com/repair-shops