What spare batteries and chargers actually work with the Canon R8 without giving me those annoying error messages? Honestly im so fed up with the battery life on this thing it is a total joke. I took it out for a street photography session in Chicago yesterday and the official battery died in less than an hour of light shooting. I need to pick up like 3 or 4 spares for my trip to Japan next month but I really dont want to drop $250 on official ones that are barely better. Are there any reliable third party brands like Wasabi or Neewer that actually show the battery percentage or am I stuck with the overpriced Canon ones? I just need something that wont die mid-shoot...