The Lapotron Crystal can store one million (1,000,000) EU. The light on the Lapotron Crystal changes from red to yellow then green once fully charged. It is created with Lapis Lazuli, an Energy Crystal, and Electronic Circuits. A MK3 Charging Bench and MFSU are capable of charging and discharging the power of the crystal, and a HV Solar Array can charge them.
It can also be used as a mad scientist's version of the RE-Battery, with much more storage and much faster charging and discharging, but you need 2Transformer Upgrades on tier 1 & 2 machines to get it to power them
Lapotron Crystals are required to craft the following items :
Note: The energy crystal does not have to be charged, but upon crafting with a charged or partially charged energy crystal the EU will pass on to the Lapotron crystal, in most cases. EU charge will also pass on from a Lapotron or Energy crystal to any items crafted from them that can hold EU.