dead batteries

[89 Stroker]

for the past few weeks my 6.0 has had dead batteries , tested them and they were good but needed a charge , something is draining the battery but everything is off , these trucks prone to have these issues? any ideas on how to fix it? they go dead within a day or two and there only a few months old

 

[Commandos888]

Re: Hey bud

Hey question.What did you check to make sure everything is off??? a draw of 400-500 mil amps will make that battery go dead. did you do a draw test to see if anything else is pulling power???:thumbsup::thumbsup: