What are the actual essential travel accessories for the R5 II that wont break the bank because I'm honestly so frustrated with how much I've already spent and now my old batteries are barely cutting it. I leave for a landscape shoot in Iceland in literally six days and I just realized my old LP-E6NH batteries wont even let me use half the new features like the pre-burst or high speed stuff. Its so annoying that Canon changed the power requirements again and I feel like I'm starting from scratch. I need a solid list of what I actually need to survive a week in the cold. My budget is tight now, maybe $400 max since the camera body drained my savings. Do I need a specific power bank or just more of those overpriced new batteries? I'm so stressed and dont want to be stuck with a brick on a glacier...
I ran into this exact mess last year when I upgraded. Iceland is no joke when it comes to battery drain. I honestly found that buying a mountain of the Canon LP-E6P Lithium-Ion Battery packs is a waste of money if you're on a budget. I got two of the new ones to handle the high-speed features when I actually needed them, then relied on the Anker 737 Power Bank PowerCore 24K for everything else. As long as it supports high wattage Power Delivery, you can top off the camera in your bag between locations. It basically kept me from losing my mind. Also, if you need cheap backups that wont break, those SmallRig LP-E6NH USB-C Rechargeable Camera Battery units are decent for when you dont need the fancy pre-burst stuff. Just keep them in your inner jacket pocket. The cold will wreck them if they're just sitting in a bag.
Adding my two cents since I spent hours digging through the technical manuals for the R5 Mark II before my last trip. I was really satisfied with how the power delivery specs actually work once you have the right gear. That pre-burst and high-speed shooting mode requires a very specific voltage handshake that most older chargers just cant handle. When I was trekking through the freezing terrain in the Alps, I found that maintaining the thermal efficiency of the batteries was just as important as the capacity. My setup worked well without a single complaint even when the temps dropped below freezing. You definitely need to think about the charging infrastructure and the environment.