I had been out of the hobby for several years. I got discouraged after I built my outdoor layout than had to tear it out because I was a little over ambitious. I just recently got back into the hobby and I need to battery power two Bachmann Shays and a Bachmann Climax. I have my three truck Shay powered by Locolinc and a two truck Shay powered by RCS, albeit older systems. The question I have is, what are most people using these days for battery power?