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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 24 Jun 2015 (Wednesday) 15:34
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Canon 7D II extreme battery drain

 
mwsilver
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Jun 24, 2015 15:34 |  #1

Just got a new 7D Mark II from B&H. I It came with a standard Canon LP-E6N and a Watson LP-E6N battery. Love the camera but it draining at an alarming rate. Before anyone suggests it, the GPS is turned off. Even just sitting with the power on, but idle and the LCD screen off, its consuming 1% every 10-15 minutes. Last night when I was playing around with the menus and took around 70-80 picture its was down to less than 50% after a couples of hours after having been fully charged. It appears to be a similar problem with both batteries. Right now I have a LP-E6 from my Canon 60D in it and it too is loosing a percentage every 10 minutes or so. Any thoughts?


Mark
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Lupo-Lobo
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Jun 24, 2015 15:41 |  #2

Battery performance should improve after it has cycled fully a time or two. That was my experience anyway.


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mwsilver
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Jun 24, 2015 15:43 as a reply to  @ Lupo-Lobo's post |  #3

Was your battery draining the equivalent of 100% in a day with hardly any use?


Mark
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Lupo-Lobo
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Jun 24, 2015 15:57 as a reply to  @ mwsilver's post |  #4

I didn't measure it precisely, however, it was draining quite fast in comparison to any of the other EOS cameras I have owned. Also keep in mind that when I first received the camera, I was in the menu system quite a bit as I was familiarizing myself with the various new functions.


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mwsilver
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Jun 24, 2015 16:06 |  #5

Lupo-Lobo wrote in post #17609439 (external link)
I didn't measure it precisely, however, it was draining quite fast in comparison to any of the other EOS cameras I have owned. Also keep in mind that when I first received the camera, I was in the menu system quite a bit as I was familiarizing myself with the various new functions.

I understand. But I'm not new to Canon DSLRs and this seems to be quite extreme. With the GPS off, I wonder whats sucking the power. I know the transmissive viewfinder uses a lot of power, but so far, the drain is beyond extreme. How many times did you have to charge the batteries before things got better? Even my the LP-e6 battery from my 60D which is relatively new is also quickly draining in this camera


Mark
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docholliday_sc001
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Jun 24, 2015 16:18 |  #6

Funny that you post this. My 1Dx has been doing the same thing. And, it just got back from Canon getting a new shutter AND power PCB. Four different batteries, all brand new OEM, all between 10-50 charge cycles. Charged with 4 different chargers, both LC-E4 and LC-E4N.

Same batteries in my 1Ds3 can sit for days and maybe will drop 2%. Sitting in the 1Dx, while asleep, will drain a percentage that is noticable.

The transmittive LCD will use some power, but it should be negligable, probably closer to 1% per week or less. Not averaging 5% per day just sitting there.




  
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Furlan
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Jun 24, 2015 16:40 |  #7

I'm following this thread as I'm in the same boat as you received my 7DII today. All I have done is
set the clock and date. The one thing I noticed is the battery took quite a while to come to full
charge which is the first thing I do and I have had my share of new Canon bodies. I'll be playing
with it tomorrow and see how it goes.




  
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mwsilver
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Jun 24, 2015 16:40 |  #8

docholliday_sc001 wrote in post #17609456 (external link)
Funny that you post this. My 1Dx has been doing the same thing. And, it just got back from Canon getting a new shutter AND power PCB. Four different batteries, all brand new OEM, all between 10-50 charge cycles. Charged with 4 different chargers, both LC-E4 and LC-E4N.

Same batteries in my 1Ds3 can sit for days and maybe will drop 2%. Sitting in the 1Dx, while asleep, will drain a percentage that is noticable.

The transmittive LCD will use some power, but it should be negligable, probably closer to 1% per week or less. Not averaging 5% per day just sitting there.

My battery is draining around 1% every 10 or 15 minutes. That's 100% in a day without taking a picture!


Mark
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Petie53
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Jun 24, 2015 16:53 |  #9

Well something is seriously wrong. My 6D holds a charge for many weeks as does my 60D and EOS-M.
Dumb idea I know but charge the batteries and leave them out for 24 hours then verify charge percentage. This will rule out the batteries or the charger being the culprit.


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Jun 24, 2015 18:11 |  #10

Petie53 wrote in post #17609513 (external link)
Well something is seriously wrong. My 6D holds a charge for many weeks as does my 60D and EOS-M.
Dumb idea I know but charge the batteries and leave them out for 24 hours then verify charge percentage. This will rule out the batteries or the charger being the culprit.

I was going to suggest this, the 7Dc had issues with battery life too. Normally it would correct itself after a few months. Mine had the same problem for about 8 months, then, suddenly it corrected itself and has never been a problem since.


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gjl711
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Jun 24, 2015 18:18 |  #11

Lupo-Lobo wrote in post #17609409 (external link)
Battery performance should improve after it has cycled fully a time or two. That was my experience anyway.

Lithium ion batteries should not improve over charge cycles. If so, there is something wrong with the battery. The advantage of Li-ion batteries is that they are ready to go from the first charge onwards. They can also be charged at any time and need not be run empty before recharging. Running them empty reduced Li-ion battery life quite a bit.

For a whole lot more info, check out this site.
http://batteryuniversi​ty.com …g_lithium_based​_batteries (external link)


To the OP. If this is really discharging in a day, there is something wrong with either the battery or the camera. You should easily get hundreds of shots per charge.


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Lupo-Lobo
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Jun 24, 2015 18:27 as a reply to  @ gjl711's post |  #12

I am just relating my experience as it relates to the new camera and two new batteries when the 7DMkII was released last fall. By the third complete discharge the batteries were much improved over their performance from the the first few days of use. If I recall, I was not the only one who went through a similar experience.

How it plays out for some of the folks posting above may be entirely different. Best of luck!


Lupo

  
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John ­ from ­ PA
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Jun 24, 2015 21:06 |  #13

gjl711 wrote in post #17609592 (external link)
Lithium ion batteries should not improve over charge cycles.

There does seem to be something out of the ordinary with the OP's camera/battery. However, granted that there isn't a memory effect like in old days of NiCads there is an issue which involves decreasing capacity over time and a calibration is needed. The instruction manual of an Apple iPad says: “For proper reporting of battery capacity be sure to go through at least one full charge/discharge cycle per month.” Engineers call this “digital memory.

I have experienced this with new STK batteries. My first only gave me a few hours use after it initial charge but after about 2 to 3 charge cycles it was fine, perhaps even offering longer life than the Canon battery which was close to being new.




  
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Choderboy
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Post edited over 4 years ago by Choderboy.
     
Jun 24, 2015 21:26 |  #14

LIONs definitely do not need "cycling" to reach rated capacity. In the OPs case, draining in 1 day is an obvious problem.
I had a 100D that drained it's battery in about 7 days.

The convenient property of LIONs is open circuit voltage provides an accurate indication of capacity. (this is different from NiCads. NiMh, Lead acid etc)
http://www.maximintegr​ated.com …p-notes/index.mvp/id/418​9 (external link)

OCV Characterization Data for a Typical Li+ Cell
Capacity (%) OCV (V)
100 4.177454
95 4.129486
90 4.085934
85 4.045427
80 4.008118
75 3.974769
70 3.945074
65 3.917968
60 3.884009
55 3.841219
50 3.820965
45 3.805737
40 3.79325
35 3.783504
30 3.775129
25 3.762185
20 3.741018
15 3.7098
10 3.686654
5 3.674776
0 3.305545

That is how I was able to determine I had a fault with my 100D. Canon service centre denied this and said it was not possible to determine LION capacity that way. Long story short, at that point I threatened going to Australian consumer authority and they maintained their opinion but handed over a brand new body with new warranty. I walked out looking like my avatar. :-D


Dave
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gschlact
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Post edited over 4 years ago by gschlact.
     
Jun 24, 2015 21:57 |  #15

If I remember correctly, the main GPS setting must be disabled, not just other settings turned off. If not disabled, the GPS indicator will appear in the top window. See page 202 in the manual.
Is this your case?

Also, do you have your sleep timer set? If not, then maybe the camera is staying awake?

I would guess it is GPS related.

I like the open circuit voltage test, it can indicate something off in the in-camera voltage sensor indicating wrong percent via wrong voltage.




  
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Canon 7D II extreme battery drain
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