Real world battery life - time lapses

[Halfrack]

Since no one talks about it, I figure I'll start a thread:

T6i with OEM LP-E17 battery
Canon 10-18mm lens, IS & AF off
Using an external wired intervalometer (delay start 20 min, with power down set at 1min)
screen folded inward with image review turned off
5 second interval
RAW image

Filled a 64gb card with 2,035 images and hadn't yet died. 440 shots per battery my left foot...
From LensRentals "the new LP-E17 battery is rated for 440 shots per charge"

1 Ds mk II with 14mm lens (af off)
A/C adapter running off Vagabond Mini
3 hours, shot every 5 seconds (to a 128gb Delkin CF card)
RAW image
didn't even cause the battery to drop to 75%

 

[Valvebounce]

Hi Halfrack.
In fairness the battery life test is done to a repeatable standard intended to replicate "normal" shooting conditions.
The scenario you provide is quite a long way from the average shooters setup.
I don't know which of this might be included in the standard, but the average scenario might be, IS on, AF on, image review on, default review time of 2 seconds some shots done in live view, tracking a subject with AIServo AF with the shutter button or BBF held on keeping the IS running, all of which will have a detrimental effect on battery life.
All that said I think the batteries generally last more than the specified number of shots although I have no research to back this up, it is more of a feeling.

Cheers, Graham.