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Here was a quick little test I threw together after reading soo much about the PowerGenix NiZn AA Batteries. I have read good things and bad things about them..

Click here to check out the batteries only $27.50 with free shipping!
PowerGenix ZR-PGX1HRAA-4B 1 Hour Quick Charger with 4 AA 1.6v NiZn Rechargeable Batteries

Click the link below to buy the Vivitar 285HV for $81.57 with free shipping!
Vivitar 285HV Auto Professional Flash

Good things
They have about 30% more capacity than NiMH
runs at 1.6 V instead of 1.2 which should provide faster recycle times with a flash
GREEN!!! NiZn batteries use no heavy/toxic metals (mercury, lead or cadmium), or metal hydrides (rare earth metals) that are difficult to recycle. Both nickel and zinc are commonly occurring elements in nature and are not very hazardous. Zinc and nickel can be fully recycled. - ( wikipedia.org quote )
They actually weight LESS than a NiMH battery

Bad things
You wont get as many flashes out of these batteries.
You NEED to buy their own special charger i recommend going with the 1 hour charger its very inexpensive and comes with 4 AA batteries.
Some say they might be too powerful and if you pop your flash too many times in a row they will actually cause your flash to either over heat of just break/malfunction.

I setup my vivitar 285HV and tested the PowerGenix NiZn Batteries along with the Sanyo Eneloops 2000 mAh AA batteries and the Sanyo 2700 mAh AA batteries. Check the video for the results of the recycle time on the flash.

I will still need to spend more time with these batteries to see if the fear of over heating or breaking your flash is possible but I would say like anything else don't be a crazy strobist popping full power flashes just because you can... remember be a responsible flasher ;) and watch your heat!

Click here to check out the batteries only $27.50 with free shipping!
PowerGenix ZR-PGX1HRAA-4B 1 Hour Quick Charger with 4 AA 1.6v NiZn Rechargeable Batteries

Click the link below to buy the Vivitar 285HV for $81.57 with free shipping!
Vivitar 285HV Auto Professional Flash

Alien Bees Vegabond II too expensive? or out of stock? Just piece together your own for $170.00 around half the price.  I wanted to to have a battery for each light stand so as to keep cords out of the way AND to act as its own weight to keep the stand from tipping over so it serves many useful purposes.  Also if one power supply goes out you will at least have more than one on location so worst case scenario you can still power all your alien bee strobes.

The Install Bay ATFH10C-10 10 GA ATC Fuse Holder With Cover (10 Pieces) - $9.99 ($2.00 for each homemade build )
http://www.sonicelectronix.com/item_20949_The+Install+Bay+ATFH10C-10.html

2 x Polarized 2 Conductor 10 AWG Connector Set - $5.00 each ($10.00 per set )
http://skycraftsurplus.com/polarized2conductor10awgconnectorset.aspx

Powersonic PS-12180NB - 12 Volt/18 Amp Hour Sealed Lead Acid Battery with Nut-Bolt Connector - $30.00 each
http://www.portablepower.com/powersonic_ps-12180nb-p-65.html

Samlex 150W Pure Sine Wave Inverter - $99
http://www.donrowe.com/inverters/puresine_150.html

Alien Bee Vegabond II Carrying Bag = $19.95
http://www.alienbees.com/battery.html

GFCI cord $10.45
http://www.lowes.com/pd_145275-33536-30339011_0_?productId=1135923&Ntt=gfci&Ntk=i_products&pl=1&currentURL=/pl__0__s?newSearch=true$Ntt=gfci$y=0$x=0

Total: 171.40

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also if you want a good 12 volt charger go with: SUPER SMART BATTERY TENDER JR. - $19.98
http://www.derbycycles.net/productdetail.htm?productId=9174965&catalogId=1795&fpg=1

Hey guys we finally got this video done and I think you all will love it!  It is an hour long full of great information on the photoshoot I did for CAPRISTAN clothing and with the model Carrie Cameron.  The video will take you through the camera settings for each shot, the 3d Virtual Lighting setup which EVERYONE loves, the final results shown AND great photoshop tutorials all in ONE video!