"You know, if you strip out the plasma relays on those energy cells, you could make flamer fuel." "Remove the safety catches on those Microfusion Cells and you could turn them into satchel charges." -Courier So they contain chemical fuel and chemical explosives?
Yup. I call gameplay-mumbojumbo, but I guess you could justify it to some degree: Energy storage cells usually do contain various amounts of more-or-less nasty chemicals, so maybe there's some flammable stuff in there (sodium-ion battery for example). And while it doesn't make any sense for a nuclea fusion apparatus to go supercritical and explode, I guess you coudl rig it in a way that it produces way too much power and stores it somewhere, so when it gets shorted out it explodes or whatever. SCIENCE!