Requirements:

Base Fallout
"Vigilant Recycler"-Perk
Science 100
and Loads of Ammo

Install: 

Just normal, either just install it with the NMM, or put the .esp in the data folder.

What it does:
 
This Mod adds 3 New ammo types which can only be crafted when you have the vigilant recycler perk and science at level 100.

Obviously it adds the recipes to these ammo-types:

Small Energy Cells (SEC)
Micro Fusion Cell (MFC)
Electron Charge Pack (ECP)

It takes 1000 normal "Bullets" of one type to create 1 Death Charge for that type of ammo. (1000 ECP -> 1 ECP Death Charge)

The death Charge has these special properties:

Damage x1000
Damage Threshold x0
Damage Resistance x0
Weapon Condition x1000

Also: 1 Death charge (regardless of ammo type) weighs 100 (!!!) Lbs.
The Death charge works with all Energy Weapons, which are on the classic form lists for Energy Weapons.

Why:

Fuck you deathclaw mother.
The purpose of this ammo is the removal of 1 single, high-priority target.
Given the drawbacks of the immense weight the rather high production cost and the almost guaranteed weapon destruction, this may or may not be a fair trade for removing one enemy from the face of the earth.

Incompatibilities:

There shouldn´t be any, as long as the mods you have installed don´t add/swap energy weapons to other/new Form Lists.

Cheers.

Edit: If you use my mod in one of your own mods, please put up a thanks message somewhere.