Genuine Canon 60D Battery Test

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old4570
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Genuine Canon 60D Battery Test

Ok , there were a few things that needed to be established …

At what point ( voltage ) does the Canon 60D stop working …

Because it is to this point we should be discharging to … Anything beyond this point is nothing ( the camera does not use it )
Now the reason I think they stop here , is because the battery is close to tapped out ( maintaining current ) …
So for safety , operation etc :

I noticed the low voltage warning at 6.64v
The camera stopped working at 6.59v

So quite possibly the correct place to stop discharging is 6.5v and not 6v , simply because anything past 6.5v is not utilized by the camera ..
This is so for all batteries including the Canon battery …
So establishing the cut of point for the discharge was the first thing that needed doing …
( This is all about establishing battery capacity or what is available to the camera )
And quite honestly , I don’t know if anyone has ever bothered with this before .
Canon Battery from my 60D is currently being charged with a genuine Canon charger …

Update
After resting over night the Battery Voltage was 8.18v
Started the discharge at 0.2Amp moments ago , will be discharged to 6.5v
I will also discharge the NO BRAND to 6.5v as well ( 6.5v being approximately where the camera stops functioning )

Update 2

Final result
Discharging at 0.2A to 6.5v = 1359mAh
( Generic discharged a 2nd time to 6.5v at 0.2A = 1295mAh )

The largest variable is how old is the battery ?
Anyhow , 1359mAh is the capacity to 6.5v ( 6.5v being the point the camera stops working )
I will re-test the generic battery as the first discharge was proof of concept ..

The other variable I would like to know , is what sort of current draw does the camera do ?
From playing with dash cams and action cams , they seem to pull around 350mAh to 500mAh …
And the 3rd variable – Stills VS video ?

To replicate actual use , one might have to discharge at a higher rate …
I might have to Email Canon Japan , see if they will give out some info …

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

Edited by: old4570 on 04/23/2017 - 09:24
The Miller
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So there are 2 1800mAh cells in there?
Makes one wonder if 2 Sanyo GA 3500mAh could replace them for double capacity.
Heck writing this makes one wonder why no casing where users can swap the cells on the go, I mean, remove casing from cam, click open, take the cells out and put new cells in

old4570
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Check out this video

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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No reason you could not CHIP a GRIP , and run 2 × 18650 for 3500 mAh capacity …
For the price of one Canon Battery , you could have a grip and double the run time ..

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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Battery has completed Charge !
But I will discharge tomorrow , takes way long and I want to go to sleep at a decent hour not baby sit a battery .

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

ChibiM
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Looking forward to it!

ralf
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You won’t be able to fit the GAs in the battery pack. That class of camera batteries contains 18500s, not 18650s (Minolta, Nikon, etc. all have had very similar packs that often differ only in the position of the contacts). Based on the “2INR19/50” on the label, I’m going to guess that Canon managed to squeeze a bit more diameter into the pack with 19500s instead of 18500s.

ChibiM
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ralf wrote:
You won’t be able to fit the GAs in the battery pack. That class of camera batteries contains 18500s, not 18650s (Minolta, Nikon, etc. all have had very similar packs that often differ only in the position of the contacts). Based on the “2INR19/50” on the label, I’m going to guess that Canon managed to squeeze a bit more diameter into the pack with 19500s instead of 18500s.
I dont think anybody said that there are 18650 inside. They are saying you can make a battery grip that can contain 2*18650. That could be and interesting project.
old4570
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A bit of an update …

Canon Battery was at 7.59 volts at the 120 minute mark ( cheap battery was 7.39 volts )
At 7.39 volts the canon battery had run for 160+ minutes ( 40+ more minutes than the cheap no name battery )

At 7.33 volts right now 184 minutes

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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Discharged the no name generic to 6.5v at 0.2A
resulting in 1295mAh being discharged

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

snakebite
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panasonic makes a 2000mah 18500.
i have rebuilt these packs with them.
no problems with recalibration either.
just charge and fully discharge the pack with the camera till it shuts down.
as already seen here most aftermarket packs are crap.and they drop capacity in a dozen cycles.
do you want a camera bag full of crap packs or just 2 that will let you shoot till you are tired?

snakebite
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liability.
bare 18650 cells are just now becoming more common on the market.
thanks mostly to ecigs/vapes.
it would be a good 3d print project to make one though.
protection board/id chip from a dead pack and 2 high quality holders in a grip.

The Miller wrote:

Heck writing this makes one wonder why no casing where users can swap the cells on the go, I mean, remove casing from cam, click open, take the cells out and put new cells in
snakebite
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does anyone get a c&d for selling gasoline or propane cylinders?
or a number of other volatile substances that are even worse than batteries if you make a mistake?like gunpowder?
its an attempt to shield themselves from liability and is useless for getting cells off the market.
once i own an item nobody can tell me who i can sell it to.