It is true that batteries make a difference but here is an shot of the AX500 setup screen that shows the default battery type is alkaline and in the video the person said they used both the batteries that came with the camera plus tried another pair of fresh batteries that they show measuring on a DMM then they show that the batteries died in mere seconds. I can see them dying sooner than rechargables (like I use) but with different sources suspecting a drain problem and the video showing it actually happening, I'd be willing to think camera problems.
As regards,
YOUR comments and thoughts. I think they are good and sound, and I agree with them. Except perhaps with the video recommendation, but even that could well be correct.
But, there is a (known to me and others) situation, whereby a number of digital cameras, over the years, do use rather large amounts of current. Making most non-rechargeable batteries unsuitable in practice for powering them.
If you try, you perhaps get only 10 (very approximately) shots done, before the camera shuts down due to too low battery voltage.
So, really you need to use rechargeable batteries, with their somewhat low internal resistance (impedance). So they can readily supply the current and take lots of shots, before running down.
The thing is that, calling this a
FAULT, is somewhat a matter of opinion. I don't think it is a fault, but some other people do. Since it is more of an opinion (in my opinion), than a technical thing, I'm happy for others to call it a fault.
Camera manufacturers. Haven't always done themselves justice, because for marketing reasons (I believe), they tend to keep quiet about things like that.
E.g. My Panasonic Camera (can't remember the model number), came with supposedly good batteries (possibly used by another customer, because although brand new, the battery pack was not sealed), but they did not last long at all. But Nickel Hydride batteries lasts for ages and take many shots (perhaps 100), before running down.
tl;dr
I'd blame poor marketing and keeping too quiet, about how badly alkaline (and similar) batteries do, with many of the digital cameras, that have been for sale, over the years. Rather than saying they are faulty as such (my opinion).
But if you want to say they are "faulty" that is fine by me, as it is only a differing opinion. I can see why they can be classed as faulty, since they should really work well with standard (Alkaline) AA batteries.