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Thread started 11 May 2010 (Tuesday) 23:06
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3 week backpacking trip with 5DII: How many batteries?

 
lostlandscapes
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May 11, 2010 23:06 |  #1

Hi there! I'll be embarking on a 3-week backpacking trip later this summer on the John Muir Trail in California, and I'll be bringing my camera gear with me. I only have one spare battery, and while I know that isn't enough for 3 weeks, I'm not sure how many more to get. There's a chance I'll get to recharge them while on the trail at one or two of the resupply points, but there is no guarantee. Does anyone have any experience with these kinds of long trips without ability to recharge? And if so, how many batteries did you bring/use? I've considered picking up a Brunton SolarRoll which would allow me to recharge along the way, but I don't really have the room in the wallet or the pack for one of these things.

Some extra info:
-I'll be taking approximately 130 shots per day (due to memory limitations)
-I'll be shooting at dawn and dusk only (cold weather drains batteries quicker?)

Any advice or tips on this subject would be great. Thanks!




  
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gjl711
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May 11, 2010 23:17 |  #2

Sounds like a great trip. I've never done anything that long but have been off the grid for 3/4 days with camera. Figure the 5DII can get somewhere around 500 shots to a battery if you conserve. At 130 shots a day and 21 days, the math points to about 6 batteries.

There are things you can do to extend battery life. Turn off IS except when totally necessary. Turn off the rear LCD. Don't chimp.

Also, the cold won't discharge the batteries faster but will lessen the amount of electrons you can get out of them. To avoid the cold effect, keep the batteries in a shirt pocked next to your body to keep them warm.


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lostlandscapes
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May 11, 2010 23:33 as a reply to  @ gjl711's post |  #3

Yikes. 6 is a lot. But kind of what I expected. Do the cheaper generics last as long?




  
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Palladium
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May 11, 2010 23:35 as a reply to  @ lostlandscapes's post |  #4

I think I saw a solar powered recharger someplace - maybe look into something like that




  
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spiralspirit
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May 11, 2010 23:47 |  #5

lostlandscapes wrote in post #10165355 (external link)
Yikes. 6 is a lot. But kind of what I expected. Do the cheaper generics last as long?

by and large the generics are great. and always pack more than you think you'll need.


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ejicon
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May 12, 2010 01:23 |  #6

Ah man, Don't limit yourself to only shooting at Dawn and Dusk. If purchasing a bunch of batteries is an issue, look into renting them. Check out your local rental shop and see if they can cut you an honest deal. I wouldn't want you to miss out on some amazing shots on your 3 week excursion ya know.


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Ainoko
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May 12, 2010 02:18 |  #7

Do you have a grip? I know the BG-2N has an adapter for AAs. Maybe that would be something you could look into.


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toxic
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May 12, 2010 02:23 |  #8

Ainoko wrote in post #10165786 (external link)
Do you have a grip? I know the BG-2N has an adapter for AAs. Maybe that would be something you could look into.

Considering how much AAs cost and how little power they have, it's better to just buy/rent more batteries.




  
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merp
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May 12, 2010 06:44 |  #9
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Ainoko wrote in post #10165786 (external link)
Do you have a grip? I know the BG-2N has an adapter for AAs. Maybe that would be something you could look into.

+ 1


Could at least start with a pack, and move on from there. It would give him an extra day, or two before he used his main batteries wouldn't it?? ha




  
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bohdank
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May 12, 2010 07:17 |  #10

Generics are cheap and they work.

You'll be chimping, at least when you start running out of memory....to delete the duds or less interesting shots to make more room...so... more battery power.

Depending on the camera. you could get a lot more than 500 shots out of a charge, assuming, little chimping...etc...


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gjl711
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May 12, 2010 07:44 |  #11

bohdank wrote in post #10166396 (external link)
...
Depending on the camera. you could get a lot more than 500 shots out of a charge, assuming, little chimping...etc...

It would be interesting to see what the max number of shots you can get out of a battery would be. I suppose you could also manually focus thus saving a bit more juice.


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bohdank
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May 12, 2010 08:03 |  #12

I was getting 700+ on my 5D with 2 sec LCD review on and using IS and AI Servo for every shot. Very little chimping, though.

I haven't stressed my 5DII yet so don;t have an idea how many shots I can get out of a battery.


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OregonRebel
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May 12, 2010 08:19 |  #13

Maybe take a film body instead if you have one....


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MikeFairbanks
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May 12, 2010 08:23 |  #14

Is there no electricity anywhere along the trail? I would think there might be a few stations along the way.

You mentioned that you wouldn't have enough room for a solar recharger, but if you can bring a big camera, then maybe you can find a way to make room?


Thank you. bw!

  
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mmahoney
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May 12, 2010 08:56 |  #15

gjl711 wrote in post #10166492 (external link)
It would be interesting to see what the max number of shots you can get out of a battery would be. I suppose you could also manually focus thus saving a bit more juice.

I don't chimp a lot and when I do it's just to quickly check the histogram and 1,200 + shots is normal for my 5D2 on a single charge with Canon branded batteries. I've no experience with generic (non-Canon) 5D2 batteries. LCD usage is the biggest drain on batteries ... LCD's are handy, but far from necessary so stop using it is the biggest step to conserving battery power. Live view and video are other big drains on batteries.

But to answer the OP just buy three or four extra generic batteries .. it's a very small price to pay for the peace of mind of knowing you can basically take as many pics as you want.


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