With my D800 I received an MH-25 charger.
I am considering additional batteries for longer trips, I have yet to completely discharge the battery using it locally. I only have one EN-EL15 battery which came with the D800. The only genuine EN-EL15 battery I can find from mainstream suppliers is the updated EN-EL15B battery which is supplied for the D850 and Z's.
My question is, will I be able to charge an EN-EL15B battery with an MH-25 charger. All the specifications I can find say it needs an MH-25a charger. I don't really want to spend £70 or £140 on batteries to find I also need the newer charger too.
Alternatively is there an aftermarket, non genuine supplier anybody can recommend, I do want something reliable and with maximum genuine capacity. I am very impressed with my EN-EL15 battery even in cool mildly frosty conditions. 400 exposures and still going while the D3 with freshly charged aftermarket batteries died at ~ 180 exposures.