HDZero Rear-Mount Battery Case with SD Card Reader

I absolutely LOVE this battery pack. It’s so convenient and I just actually bought a second one so I can switch them out. If these weren’t know to have issues (that I have not experienced) I would give it ten stars if I could. I’m only giving this 4 stars because it’s fairly common to see on Facebook posts that the cable where it goes into the goggles has a weak solder point and has broken for a good amount of people. I’m super super careful with mine but I’d just urge everyone to also be extremely careful and delicate with that so they don’t have a big of a chance of having that issue. I truely love this product so much tho!

Does a great job at redistributing the weight so you feel less torque on your head/neck; pads are nice and soft as well. It doesn't slide around the headband, it's going to stay right where you put it. Charging the batteries via a standard USB-C is amazing, as I don't have to figure out which battery charger to get (and power source). LEDs on the case show the charge level, allowing you to see with a glance how charged you are. Haven't made use of the micro SD-card slot myself yet, but I appreciate the option.

Works perfectly -- I can't imagine using my goggles without this, tbh. Also glad to see they're working on a (free) updated part to add some cable strain relief, too!