As of the latest ATM7 version (0.4.34), it is possible to get the Supercharging effect whilst being attacked by mobs and wearing armor enchanted with the Blessing enchantment. This can be exploited with the right batteries for massive amounts of free energy, possibly to the point of not needing any other power generation for a long time.

To fix, change this line:

to the following:

unhandled_beneficial_effects = ["astralsorcery:potiontimefreeze", "cofh_core:supercharge"]

Closing for a few reasons:

1. Part of this issue was caused by a bug in Mekanism's Induction Matrix cells that is likely fixed in newer versions.
2. Of the remaining options for portable energy storage, most of them require so much resources that by the time a player has access to those resources, they could have already built passive power generation on a similar scale (millions of FE/t constant).