This post was last modified: 2014-05-26, 20:50 by Marcos.

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Hello everybody out there!

I wonder if someone could give me a hand, please!
I have recently purchased a XTPower MP-S23000 external battery to feed my Canon eos 5D Mark II during 12-hours full night timelapses, as per recommendation of Gunther Wegner. The performance of this battery looks impressive as it's a 23000 mAh Lithium-Polymer battery, all in 670 grams. It is very lightweight and looks gorgeous. It comes with a whole bunch of adapters to fit almost any laptop, mobile and other devices, but not for any camera.

[Image: http://clientes.bluekea.com/marcos/lrt/001.jpg]

In order to feed my 5D MkII, Gunther suggested me to manufacture my own Canon-compatible cord, which I will, with the help of an unexpensive Canon compatible Chinese ACK-E6 battery adapter

[Image: http://clientes.bluekea.com/marcos/lrt/002.jpg]

Until here OK, but now this is my question:

The MP-S23000 has 3 selectable voltage outputs: 12v, 16v and 19v, BUT the 5D MkII works with 7,2v batteries. What am I supposed to do here? Do I need a voltage adapter to turn 12v down to 7,2v? Do I feed the camera directly with the 12v power..?

[Image: http://clientes.bluekea.com/marcos/lrt/003.jpg]

I haven't found any related info on the net about this.
Any help will be welcome.
Marcos
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[Image: http://clientes.bluekea.com/marcos/lrt/000.jpg]

Hi, you need to add a DC2DC converter inbetween and adjust the voltage. I use this one:
http://www.amazon.com/gp/product/B008BHA...XMOWODC6LR

There is a german post by me explaining how to do it, you can use google translate:
https://translate.google.de/translate?hl...non-diy%2F

This post was last modified: 2014-05-27, 21:31 by Marcos.

Oh my God! This is the trick? I would have never found it for myself or even asking to a professional in my city. Thanks once more for your help, Gunther!
I also find very interesting the solution of JPDanko using a camcorder 7200mAh 7.2v battery to feed the camera through a battery adapter. You can even set up a 2-battery kit that gives you 14400mAh, enough for 12 or more hours of shooting.
Thanks for your great help.
Regards
Marcos

How about 9V, if I conect it directly on my Canon? I have bought this battery. Will it work or I will destroy my camera?

I wouldn't connect it directly without a converter.

I am thinking...in a grip we can put 6xAA battery that is 6x1,5V=9V