Series box issues

[Doug plant]

Built my first series box mod and used a keystone dual 18650 battery tray. Everything was working fine for the first 3 weeks but now the positive post on both batteries are arching against the terminals and heating them up. I've put the same build on it since day one.... Suggestions?

 

[dc99]

Sounds as though its not making really good contact. Maybe bend them slightly to make better contact

 

[Doug plant]

I thought the same thing and gave that a shot but no luck... I think I'm going to toss a new sled in there.... I just don't want to waste the money on another tray if that's not even the issue... Thanks for the response! I'm open for any other suggestions.