the mechs could manually, recharge your energy as well as they can shutdown to decrease a heat.

So you want it to (A) work exactly the way heat mechanic does or (B) recharge at the end of every turn AND ALSO recharge if you shut down?

Seems like either of these ideas would unbalance the use of energy weapons. (A) would buff energy mechs too much and (B) would cripple them. What's your reasoning for wanting this suggestion?

I assume it would work like an energy kit. Anyway, electric mechs are already gimped enough. No need to make it worse.