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 p.1 #1 · External 1D MKII Lithium Battery Solution 1Ds markII | |
For those of you with 1D MKII / 1Ds MKII / and all other that use the NP-E3 batteries, I have an interesting solution for you.
I have a race coming up where I will be photographing at below freezing temperatures, and I did not want to deal with the battery life drop off of the NP-E3 NIMHs. I was trying to shove a lithium battery in the NP-E3 housing, but the shape of the housing made it difficult to put the battery and a regulator in. Instead I have done the following
This item came up on woot for $99 so I picked one up hoping I could adapt it to the AC adapter brick that comes with the 1d (xpal 18000)
It has a 9-12v output and a 16-19v output.
I tried splicing a cable in to fit between the 9-12v output, only to find that the output is 10.5 volts (below what the 1d requires to start up). The 16-19v output is at 19v.
I called them up hoping for a solution and they sent me the following..
It is a regulator designed to drop the 19v output to 12v... and after splicing, it works like a charm.
The battery is ~18000 mah @5v, which I equate to ~7500 mah @12v - any losses due to the converter. I fully expect it to last better than 4 NP-E3s in cold weather!!!! (and it could do much much better)
I still have to get extensions setup, but I am excited to go out shooting with it.
Let me know if you cannot see the images. If I get a chance I will post my own later.
Edited on Nov 04, 2009 at 09:26 PM · View previous versions
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