dead battery

I have a 05 tb 62000 miles truck wont start,can boost battery and it will start but interior lights flicker and battery gauge moves back and forth. when i turn truck off it will not restart without another boost. thanks in advance for any help

Test the battery, check the charging system, check ground and positive cables, normal diagnostics for your problem.

thanks maxwedge as always you guys are right on! problem solved

And it was what?

replaced battery ll is well