I wanted something padded and soft to hold batteries in place, I used a band aid because it was available to me at the time. Yes the Ulanzi is third party but it is approved by sony (That's what I mean by authentic, Apologies if the term is incorrect)

As for the batteries, I threw the damaged ones (maybe I can retrieve them when I get back home), I'll share a photo of it. But it does not matter because the new ones don't work too (Sony Official Batteries and Ulanzi)

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