I have read that EN-EL15 batteries work in cameras that come with EN-EL15a such as the D850.

Is there any difference or reason why to use one over the other? Does it depend on the camera? The EN-EL15 are a bit cheaper where I am and there are a lot more available alternatives (plus I already have 4 of them).


Nikon updated the design of the original EN-EL15 due to overheating issues. They issued a voluntary recall of some of the manufactured lots of EN-EL15 batteries, and stopped producing the non-"a" versions.

For more information, see Nikon's recall notice, To users of the EN-EL15 Rechargeable Li-ion Battery.

  • I also wasn't sure I can use a "a" version with my D500 but the Nikon page says all these models are cross compatible. Here in Switzerland the "a" version is even cheaper, then if I have to buy a new spare battery I would go for the "a" version.
    – рüффп
    Jun 10 '18 at 8:53

While this is not a scientific opinion, my personal experience is that I have issues when using the non_"A" version of the battery while shooting on High Continuous. I have found a number of shutter response issues when I am shooting sports and using the non"A" version. With everything else being the same, I have never had these issues when using the 15a. Both are Nikon Batteries, but the 15A is much newer. Just a thought when deciding between the two and the little extra for the 15a.

  • Which camera(s) are you using?
    – glenneroo
    Oct 10 '18 at 6:41

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