How to make a box of (almost)infinite energy

Or you have fun when building an automated reactor, an Windtower or some solars. BTW, you could also cheat an lapotron.
And all ways I said don't need qastupid cheatprogram!

I think this is just for testing electrical stuff, like some suggestion of infinite battery box, not to cheat energy in survival

Or you just use the Quantum generator from the Adv Solars mod ....

Or you could build yourself a nether power plant to power your centrifuges.
Create a self-refuelling nuclear reactor to power that massfab.
Get a windmill tower to charge you lapotrons so your miners can dig for you.

You know, you could just play the game instead of using cheap tricks and be like HoHoHo! I got so many eu that I can do nothing with because game insight.

On the other hand, it's a nice find for people wanting to do simple tests or spotlights or whatever, but for general playstyle it's not only cheatish, it's also more of burden than spawning it yourself.

set charge negative...

also there is config option for generators, set watermill rate to 9999999 and enjoy infite power source.

or you just use an Emitter from the addon Advanced power managment with unlimited energy! without cheat program just "OP" in smp or NEI in ssp