Poor battery life with CHDK?

julesd

11

Re: Poor battery life with CHDK?

« Reply #30 on: 10 / March / 2009, 18:48:24 »

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I now have a recommendation :-

Yesterday I drove from one end of England to the other... A set of duracell that were already in my a570 gave me about 800 shots on a timelapse script with the LCD turned off. I got another 3400 shots from 2 "ENERGIZER ULTIMATE LITHIUM DIGITAL" batteries and they are not even registering as used on the camera. Oddly, I didn't even turn the LCD of for that. These batteries rock. The have a quaint little leaflet with them that promises me at least 630 shots. I'm Uber-happy.

See the results on my blog here :- http://blog.global6.net/julesd/index.php?/archives/184-Driving-from-Barrow-in-Furness-to-Tooting-Timelapse.html

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dennisfox74

18
Canon A550, Canon SX10-IS

Re: Poor battery life with CHDK?

« Reply #31 on: 11 / March / 2009, 02:56:09 »

Yeah, the 8X version of those is the same battery that I use, and they're incredible.

still, I do like the idea of rechargeable. Too bad they don't make rechargeable lithiums in that size. Best of both worlds.

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Photography is the art, of making a fraction of a second, last forever.

fudgey

1705
a570is

Re: Poor battery life with CHDK?

« Reply #32 on: 12 / March / 2009, 13:46:16 »

Quote from: julesd on 10 / March / 2009, 18:48:24

I got another 3400 shots from 2 "ENERGIZER ULTIMATE LITHIUM DIGITAL" batteries and they are not even registering as used on the camera.

Those AA size Lithium cells have higher voltage compared to regular alkalines and a lot higher than NiMH, which probably fools the battery warning. I've never tried a pair, but don't be surprised if they end up being registered as empty-ish very little before the camera shuts down.

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julesd

11

Re: Poor battery life with CHDK?

« Reply #33 on: 12 / March / 2009, 18:15:34 »

I'm more than happy for them to last long and then suddenly drop off... I'm gearing up for some KAP photos i'd rather have 6 hrs and instant fade than 1 hr and gradual... they are the best i've used but then I am obviously not that concerned about how well they last in stand by or with a flash.

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dennisfox74

18
Canon A550, Canon SX10-IS

Re: Poor battery life with CHDK?

« Reply #34 on: 12 / March / 2009, 20:44:03 »

Quote from: fudgey on 12 / March / 2009, 13:46:16

Those AA size Lithium cells have higher voltage compared to regular alkalines and a lot higher than NiMH, which probably fools the battery warning. I've never tried a pair, but don't be surprised if they end up being registered as empty-ish very little before the camera shuts down.

Yeah, they almost always give only a short warning before going dead, but that's just kinda' the nature of the beast. Their long life more than makes up for any misgivings about their short warning time.

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Photography is the art, of making a fraction of a second, last forever.

MrSpoon

Re: Poor battery life with CHDK?

« Reply #35 on: 18 / April / 2009, 13:58:38 »

Quote from: dennisfox74 on 24 / February / 2009, 14:37:11

I get about 15 minutes on standard alkaline batteries. I thought it was really short too, so I actually exchanged the camera when I first noticed that (about 2 hours after buying it), and the replacement camera did the same thing. I put a set of 2500mAh rechargeables in the same camera, and got about the same result life wise give or take a few minutes.

I know this has been discussed at length, I just thought I'd add that roughly speaking, if those batteries really were using up 2500mAh of charge in 15 minutes, that'd be a current draw of 10 amps. That'd be one hot camera

As I'm sure you know, battery voltage is a poor indicator of actual charge.

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