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<blockquote data-quote="WayneF" data-source="post: 348295" data-attributes="member: 12496">It wasn't me that mentioned wakeup, and I&nbsp; have not done any type of battery usage tests on it.&nbsp; I think it's like the SB-800, which Nikon rates as the batteries capable of fewer full power shots than the others, but of course, it also puts out more light than others.&nbsp; The higher power does use more battery, but&nbsp; I think it's a plus.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />&nbsp;&nbsp; For example, the Nikon manuals specify the minimum number of full power flashes on 2000 mah NiMH (Eneloop):SB-800 150 flashes; SB-910 165 flashes; SB-600 220 flashes, SB-700 230 flashes.That could be efficiency, but I suspect they are all about alike. Or it could be output power, which the guide numbers also verify.Anyway, the YN565EX hangs in there with the SB-800 on output, which should need some battery.I am a bit uneasy with the reputations, only because Nikon is well known, and Chinese is unknown. Also no warranty on Yongnuo, at least not here.&nbsp; But it works very well, and we can buy three of them for the price of one SB-700. Even as an expendable commodity, it seems a very satisfactory bargain.</blockquote>

[QUOTE="WayneF, post: 348295, member: 12496"] It wasn't me that mentioned wakeup, and I have not done any type of battery usage tests on it. I think it's like the SB-800, which Nikon rates as the batteries capable of fewer full power shots than the others, but of course, it also puts out more light than others. The higher power does use more battery, but I think it's a plus. :) For example, the Nikon manuals specify the minimum number of full power flashes on 2000 mah NiMH (Eneloop): SB-800 150 flashes; SB-910 165 flashes; SB-600 220 flashes, SB-700 230 flashes. That could be efficiency, but I suspect they are all about alike. Or it could be output power, which the guide numbers also verify. Anyway, the YN565EX hangs in there with the SB-800 on output, which should need some battery. I am a bit uneasy with the reputations, only because Nikon is well known, and Chinese is unknown. Also no warranty on Yongnuo, at least not here. But it works very well, and we can buy three of them for the price of one SB-700. Even as an expendable commodity, it seems a very satisfactory bargain. [/QUOTE]

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