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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 01 Jan 2011 (Saturday) 22:48
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External power for a Canon Speedlite 580EX II???

 
Gaarryy
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Aug 06, 2013 18:05 |  #31

Just a thought for the OP.
A different direction to think about. Since you are inside the house and will be plugging it in to an outlet. Why not look at a smaller studio strobe? say an AB400 or 800. lots more power at the top end, and if you are shooting lower power good recycle times. Since you did not say if you are using the ETTL features of the flash, but it might be a fun way to go.


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MT ­ Stringer
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Aug 08, 2013 11:31 |  #32

It's been 2 1/2 yrs since the original post and he never replied one way or another...not even a thank you to all who offered help and advice.


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tongki
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Aug 09, 2013 08:55 |  #33

alyson wrote in post #11791919 (external link)
thanks for the info rob! so what is the speedfire exactly? a converter or a battery pack

Canon high voltage input basically is a 330V DC current,
if we want to build an adaptor with the same output and using the same connector,
I think it is possible and easy

Powering Quantum flash is a bit different,
there are high voltage and low voltage, I am not sure with the low voltage,
My guess is around 8V DC, actually, it is similar to camera battery power,
which is around 7,2V DC

I think, they do have standard for powering the flash and the camera,
what makes it different is the connector and Amps


EOS 70D x 2 units + EOS 7D mark II x3 units
Newton FR3, Newton modified bracket, EF 17-40mm x4,EF 24-70mm f/2.8 x2, EF 70-200mm f/2.8 x2
Quantum Trio x2, T5D-R x1 + FW7Q x1, CoPilot x2, Godox AD-180 x5
Propac PB960 head x12, PB960 battery x10
sorry, no stupid speedlite from Canon !

  
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Wilt
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Aug 12, 2013 18:20 |  #34

Quantum Instruments is right now offering factory refurbished Quantum Turbo battery (original, not 2+2 or SC, etc. which came out later) for $180


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Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention

  
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dmward
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Aug 13, 2013 21:53 |  #35

Wilt wrote in post #16202478 (external link)
Quantum Instruments is right now offering factory refurbished Quantum Turbo battery (original, not 2+2 or SC, etc. which came out later) for $180

Remember that the turbo is a gel cell SLA battery. There are special considerations required regarding charging.
For $20 more one can get a Cheetah Light 4500 which probably will deliver more pops and is a much better battery technology. It is also smaller and lighter.


David | Sharing my Insights, Knowledge & Experience (external link) | dmwfotos website (external link)

  
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Wilt
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Aug 13, 2013 22:14 |  #36

dmward wrote in post #16205987 (external link)
Remember that the turbo is a gel cell SLA battery. There are special considerations required regarding charging.
For $20 more one can get a Cheetah Light 4500 which probably will deliver more pops and is a much better battery technology. It is also smaller and lighter.

Yeah, sealed lead acid has a far better ability to store electricity without self draining, like ordinary NiMH.

My original Turbo has an ordinary dumb AC adapter for a charger...the charge circuitry is built into the electronics of the Turbo.

Yes, the 4500mAh storage of the Cheetah will outdo the 2700mAh in the lead acid cell of the Turbo.

OTOH, you need to send in the Cheetah to the manufacturer to replace the batteries, while the Turbo battery refit is a do-it-yourself affair that only costs about $25 to buy the new SLA.


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dmward
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Aug 13, 2013 22:25 |  #37

Wilt wrote in post #16206023 (external link)
Yeah, sealed lead acid has a far better ability to store electricity without self draining, like ordinary NiMH.

My original Turbo has an ordinary dumb AC adapter for a charger...the charge circuitry is built into the electronics of the Turbo.

Yes, the 4500mAh storage of the Cheetah will outdo the 2700mAh in the lead acid cell of the Turbo.

OTOH, you need to send in the Cheetah to the manufacturer to replace the batteries, while the Turbo battery refit is a do-it-yourself affair that only costs about $25 to buy the new SLA.

Wilt, I had a couple of the old turbos. They worked but, like all lead acid batteries needed to be kept at full charge.

The newer Lithium batteries are much more user friendly in that regard. Replacement batteries are less than $100 and they are ready to use. The $25 gel cell means a DIY replacement. Getting Quantum to do it used to be about $100. May be more now.

In the end, much better use of funds to by Lithium based batteries today.


David | Sharing my Insights, Knowledge & Experience (external link) | dmwfotos website (external link)

  
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External power for a Canon Speedlite 580EX II???
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