eli5: Why DSLR (and mirrorless) camera batteries so inferior compared to smartphones?

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I had Canons and Nikon DSLRs and lately a mirrorless Panasonic micro 3/4 and this always bugged me:
How come these camera batteries die within hours while only snapping a few pics here and there, while my iPhone (and I heard many androids are even better) last a full day (or more) doing a lot more processing intense tasks (watching HD videos, taking pictures, browsing the net, etc)
I have to carry 3-4 extra batteries when taking my “big” camera out for a hike and I’m not even shooting insane amounts of pictures.

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5 Answers

Anonymous 0 Comments

I’ve had the batteries on my dSLR last for thousands upon thousands of photos. This would be different if I turned the screen on all the time, but it’s a dSLR so I don’t really need it.

With that said, they did eventually die and any new ones I try to get _are_ crap. Probably because they’ve been sitting in a warehouse for over a decade.

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