Lapotron Loader Upgrade contains information about the Railcraft mod.
The Lapotron Loader Upgrade is a custom upgrade added by railcraft. It adds 1,000,000 EU extra storage to any Energy Loader or Unloader in which it is installed, thanks to the Lapotron Crystal inside. It does not upgrade the storage of any other IC2 machine. You can not put more than 9 in a single Loader/Unloader.