R7 batteries

Ephemeris wrote:

Distinctly Average wrote:

Steven Blackwood wrote:

The long and short of it is, if you want to get the most out of your cameras spec, you will need to use genuine Canon batteries and the more recent ones, also at more than half-charged. This is not to say that the third party batteries won’t work well but that only OEM batteries offer any sort of guarantees.

In this case, OEM batteries don’t give the best results. Granted, they are an old version of the battery but it was quite surprising. While they have the same voltage I can only assume they are less capable under load of supplying adequate current.

Maybe a detection that it's not the newer style battery. I'm not sure how they know what the battery is but it will be useful for them to know so that the charging profile is correctly set.

In power tool batteries we do a few things, one is change a resistance that the tool can measure and another is serial data from a chip talking to the tool or charger.

There is some serial data. My guess is that there are a couple of things going on. In the case of the Canon battery, they know the capabilities and decided it was not up to par. Maybe for thermal reasons, maybe the current capabilities of the battery. So a hard coded limit is given to those. With the third party cells, some do have the requisite temp connection and the data connection. Without checking my guess is these batteries supply either spoofed data, or the right data so the camera knows how to deal with them. This can be good, and can be bad. In the past I have seen batteries that spoof their data but are in truth unable to do what it says on the tin. There are some good third party batteries though.

Some of the other third party brands may not be supplying the right data, or might even be presenting as the original LP-E6 so end up limited for that. A couple of the third party specials lack the additional contacts, or have them for show only. So again, the camera limits what they can do.

I might dig out the scope tomorrow and investigate further. That depends on the weather as I have been cooped up for far too long and there is a local Smew that needs photographing.