Energy Loaders and unloaders allow a user to put IC2 energy into and out of energy carts.
They can be used to transport energy without much room or EU loss. They can accept 512EU/t before exploding. You can specify parameters for when it sends out redstone current which may be useful for boarding tracks or holding tracks. They may use the lapotron crystal upgrade the only machine (other than the energy unloader) able to do so. The laporton crystal upgrade increases its capacity by 1million EU.Note: To use a MFSU cart with an energy loader the energy loader must have a transformer upgrade.