Ok just finished putting my fuel pump back on as I bench tested it for my fuel issues. Replaced one last hose also as it appeared to be collapsed. Once that was all done I tried to start the Traveler to see if it was the problem. Turned the key and heard just a slight clunk/pop. did not attempt to turn over or anything. No lights no nothing. Hooked up jumper cables and when I try to start it this is what happens.
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Disconnect the jumper cables and nothing again, no noise no nothing. Thinking its battery as it does more with the cables connected. Any other ideas what it would be? Never had an issue with battery before pulling pump. Didnt touch anything electrical but Traveler has been sitting out in the rain for the past 5 days none stop with the top off. Had a tarp over it for 4 of the days.

Thanks
Joker51