Don't you hate it when you stump Google? I tried googling my question and all it brings up are year old reviews of the G7 and comparisons between the G7 and GH4, but nothing about if they use the same battery. I need to know because I'm coming perilously close to winning an ebay auction on a GH4 but the seller isn't including a battery because of some nonsense about shipping batteries "internationally" (he's in Canada, sheesh!) If I do win I'd like to get a battery at the same time. Searching for GH4 batteries on ebay brings up items that say "For all Panasonic LUMIX cameras", but then go on to list every LUMIX camera except the G7. I have 2 G7 batteries but I would keep one if I sell the G7, if it's compatible with a GH4. Little help, please!