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I have a 7' x 8' Nscale layout. It is the donut style. I have two TECH - II 2400 power packs. I notice that after I have been running trains for a while (45-60 minutes), the packs are hot to the touch. This doesn't seem right to me. After all, I can run a good engine for hours and it never gets hot. Is this normal? Does it mean that I need more power? Maybe I should run them until they fail and replace them with new TECH 4 units. I don't usually run more than one engine per train. Sometimes I'll run two engines per train. The 2400s aren't as powerful as my old Locomotion 2500s. I've liked this because you get to use more of the 320 degrees on the throttle knobs. Do some power packs have adjustable ending voltages? I think I read somewhere that some of the TECH 4 units have this feature. Thanks for any insight or information you can give me.
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