The SD-800 adds a fifth AA battery to the flash. The SB-800 is designed to operate upon 6 volts of power, which is the output of 4 alkaline batteries. NiMh batteries, however, have a lower specified voltage which ideally requires 5 units to deliver ideal voltage to the SB-800.
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Most Liked Positive Review
Correction to item description
The purpose of this holder is not to extend the capacity by 20% as stated by the website. Alkaline batteries have a nominal voltage of 1.5v per cell, since the batteries are in series ...Read complete review
The purpose of this holder is not to extend the capacity by 20% as stated by the website. Alkaline batteries have a nominal voltage of 1.5v per cell, since the batteries are in series in the flash, that makes the total voltage to the flash 6v w/ alkalines, which is the voltage this flash is designed to run with. Rechargeable batteries (NiMH, NICD, etc.) have a nominal voltage of 1.2v per cell, which means that you have to use 5 of them instead of 4 to get the 6 volts total that the flash wants. Using this holder increases the voltage, not the capacity. The capacity (longevity) will be a function of the cells used (i.e. 2500mah, 2000 mah, etc.)
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Most Liked Negative Review
Pops off often, great when it stays on!
This product is great when it stays on, it just seems to pop off all the time and this is an issue! I have another one that is the original extra battery holder and ...Read complete review
This product is great when it stays on, it just seems to pop off all the time and this is an issue! I have another one that is the original extra battery holder and it stays on the flash a little better, so maybe it is just an issue because this is a replacement. Regardless, if you want extra battery charge this product really is worth it. Especially if you set up strobes.
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Comments about Nikon SD-800 Extra Battery Holder:
Nice add on to the SB 800. Faster recycle time.
HEY NIKON...how about a similar acc. for your SB900?
Easily knocked off in the heat of a shoot.
Try a short strip of Gaffer's tape to keep in it place.
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Comments about Nikon SD-800 Extra Battery Holder:
Replaced a lost unit and it fits and works perfectly.
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Comments about Nikon SD-800 Extra Battery Holder:
I use my extra battery holder all the time. I have 2 SB-800's and the extra battery really help. I lost 2 of them while moving, and had to replace them.
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Comments about Nikon SD-800 Extra Battery Holder:
Had a battery leak in one of my original SB-800 extra battery holders, needed one fast. Exact replacement quality.
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Comments about Nikon SD-800 Extra Battery Holder:
This product is great when it stays on, it just seems to pop off all the time and this is an issue! I have another one that is the original extra battery holder and it stays on the flash a little better, so maybe it is just an issue because this is a replacement. Regardless, if you want extra battery charge this product really is worth it. Especially if you set up strobes.
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Comments about Nikon SD-800 Extra Battery Holder:
The addition of a 5th battery greatly decreases the recycle time so the flash is ready to fire again sooner.[...]
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Comments about Nikon SD-800 Extra Battery Holder:
I mostly shoot weddings and so a quick recycle time is critical! And this extra battery attachment gives me exactly that. I've also heard that this is one reason that the sb-800 was discontinued because the flash doesn't work to well unless you have this.
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Comments about Nikon SD-800 Extra Battery Holder:
The Nikon SB-800 extra battery holder gives me the extra power I need for shooting. It's been very useful in many situations. I hope Nikon keeps adding it to their line of flashes in the future.
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Comments about Nikon SD-800 Extra Battery Holder:
it isnt designed to increase the power delivered by the flash, it's just there to speed recycling. If you need that capability, it's indispensable. and for the price, it's cheap insurance to get "that shot".
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Comments about Nikon SD-800 Extra Battery Holder:
My new SD-800 works great, but not sure why original one quit working. It makes a big difference when I use it on my SB-800 strobe unit because it provides more power and faster recycling time.
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Comments about Nikon SD-800 Extra Battery Holder:
Solid built and easy to use.
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Comments about Nikon SD-800 Extra Battery Holder:
A great tool to quicken the recharge time for the SD-800 flash unit
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Comments about Nikon SD-800 Extra Battery Holder:
I've had nothing but irregular failure of my SB800 flash since the day I bought it 2 years ago. Thought I would try the 5th battery holder just for kicks, cause I didn't want to pay for the SB900. Well it works great, I have a new flash for the cost of a battery holder. Yea team.......
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Comments about Nikon SD-800 Extra Battery Holder:
If you have an SD-800, and use rechargeable batteries, you must use this accessory to reach the 800's full potential. It seems to extend the battery life of all batteries and also significantly decreases the recycle time.
Comments about Nikon SD-800 Extra Battery Holder:
The purpose of this holder is not to extend the capacity by 20% as stated by the website. Alkaline batteries have a nominal voltage of 1.5v per cell, since the batteries are in series in the flash, that makes the total voltage to the flash 6v w/ alkalines, which is the voltage this flash is designed to run with. Rechargeable batteries (NiMH, NICD, etc.) have a nominal voltage of 1.2v per cell, which means that you have to use 5 of them instead of 4 to get the 6 volts total that the flash wants. Using this holder increases the voltage, not the capacity. The capacity (longevity) will be a function of the cells used (i.e. 2500mah, 2000 mah, etc.)
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