Back-up Batteries in Current EOS Cameras?

Former Canon EOS cameras had discrete button-style back-up batteries to preserve settings while the main battery was out of the camera. Those back-up batteries lasted so long that original camera owners may not have even realized they were there...unless they read the manuals carefully.

As far as I've seen anywhere, the more modern cameras don't have user-removable button-cell backup batteries. I'm surmising they have fixed rechargeable lithium batteries buried deep inside.

I don't see anything about it in theCanon EOS DSLR knowledge base.

Is that the case? Does anyone know for sure?

RDKirk wrote in post #17972265
Former Canon EOS cameras had discrete button-style back-up batteries to preserve settings while the main battery was out of the camera. Those back-up batteries lasted so long that original camera owners may not have even realized they were there...unless they read the manuals carefully.

As far as I've seen anywhere, the more modern cameras don't have user-removable button-cell backup batteries. I'm surmising they have fixed rechargeable lithium batteries buried deep inside.

I don't see anything about it in theCanon EOS DSLR knowledge base.

Is that the case? Does anyone know for sure?

Your not referring to the clock battery, are you?

http://protogtech.com …battery-location-removal/

The 5D3 has one...

I'm not sure if they're Lithium, but yes a number of newer models have their clock & user settings saved by virtue of having a circuit-board mounted battery.

The 7d doesn't.

frugivore wrote in post #17972270
Your not referring to the clock battery, are you?

http://protogtech.com …battery-location-removal/

Ah, so that's actually the same location as the original 5D. Cool.