3 days ago i started working on my truck . changed the shocks got ranchos s5000 new rotors new drums , left the ignition on all day while working and running around for parts. after i was all done with the changes my batterry was dead, we jumped it it was running soon i was taking the cables off it was dying. pit a new bat in got home in the morning i return to the shop to exchange one of the shocks the bat was fine , the battery light was on on the dash , i pressure wash the engine , i think i was careful enough then i left . went hunting , return home 3/4 mile to my house my lights went out , in the drive way the car died . the brand new bat that i had in was dry , change it to day , tested the alternator everything was good, change the alternator, tighten the starter connection . i dunno what else can i do , i left it running now with a brand new bat and after 1 h of running it died. pls help

 

I suggest charging the battery with a 3 stage charger.
What was the output on the alternator?

 

low out put <30 thats what i saw when the oreilly guys where testing the charging

 

<30 amps? Sounds pretty low.

I have been told that when the alternator goes bad it usually takes the battery with it.
Also been told that when the battery gets killed the alt may get killed too.

 

i changed both they brand new