Increased phone battery usage after latest update?

By any chance has anyone else noticed in the past week or so that the game has been using significantly more battery life (of the phone) than it used to? Because lately I’ve found that even while plugged into my car’s USB port, the battery still slowly drains while using the game, which didn’t used to happen, at least not as much, and I don’t know if this is an issue with my battery or whether for whatever reason the game recently got some kind of powerwhore update that’s causing this. Has anyone else had any problems like this?