In the 2nd edition of King of Tokyo (2016 version), the Battery Monster Power Card states:
(Keep) When you buy Battery Monster, put 6 [energy symbol] on it from the bank. At the start of each turn take 2 [energy symbol] off and add them to your pool. When there are no [energy symbol] left discard this card.
The Friend of Children Power Card states:
(Keep) When you gain any [energy symbol] gain 1 extra [energy symbol].
If you have Friend of Children and buy Battery Monster, does this then mean that you get 3 energy cubes each turn for the next three turns? I am unsure about this because Battery Monster does not explicitly say "gain energy". On the other hand, other Power cards like
We're only making it stronger (Keep): When you lose 2 [heart symbol] or more gain 1 [energy symbol].
Metamorph (Keep): At the end of your turn you can discard any KEEP cards you have to gain their full cost in [energy symbol].
do explicitly say "gain" so I would expect that these two cards synergize with Friend of Children?