Author Topic: Swapping Batteries in Battery Grip  (Read 10259 times)

WaltMarsh

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Swapping Batteries in Battery Grip
« on: July 13, 2012, 02:13:45 PM »
While recording long events it would be great if there is a shortcut to disable one side of the battery grip, open the compartment door, replace battery, close compartment door, enable battery port, all while recording.

Is this possible?
Canon 5DMK2, 28mm+50mm+85mm Zeiss Primes, 28-75mm+75-200mm Tamron,Tascam DR-40, other stuff too :-)

Malcolm Debono

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Re: Swapping Batteries in Battery Grip
« Reply #1 on: July 13, 2012, 02:22:40 PM »
What kind of grip do you have? When I open mine, both batteries come out, so it definitely wouldn't be possible.
Wedding & event cinematographer
C100 & 6D shooter
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nanomad

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Re: Swapping Batteries in Battery Grip
« Reply #2 on: July 13, 2012, 02:22:56 PM »
Do you mind uploading a macro shot of the battery grip door?
EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5

ilguercio

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Re: Swapping Batteries in Battery Grip
« Reply #3 on: July 13, 2012, 03:13:54 PM »
My BG is a clone but i guess every one of them is pretty much the same.
If i start the camera with the batteries inside but with the door open everything is fine.
Then, when you close the door, the switch triggers and you lose power for the amount of time the spring takes to come back into place.
This contact can probably be faked, i don't know, it would be a nice feature for hardcore movie users.
Canon EOS 6D, 60D, 50D.
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WaltMarsh

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Re: Swapping Batteries in Battery Grip
« Reply #4 on: July 13, 2012, 03:16:20 PM »
Canon 5DMK2, 28mm+50mm+85mm Zeiss Primes, 28-75mm+75-200mm Tamron,Tascam DR-40, other stuff too :-)

nanomad

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Re: Swapping Batteries in Battery Grip
« Reply #5 on: July 13, 2012, 04:26:47 PM »
Can you confirm that this works?:
- Start with the lid open and two batteries
- Power up camera
- Hotswap one battery
- Camera doesn't shutdown

If so, I'll have a look at the firmware to see if I can spot something
EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5

ilguercio

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Re: Swapping Batteries in Battery Grip
« Reply #6 on: July 13, 2012, 04:36:33 PM »
Can you confirm that this works?:
- Start with the lid open and two batteries
- Power up camera
- Hotswap one battery
- Camera doesn't shutdown

If so, I'll have a look at the firmware to see if I can spot something
It wors for me with 50D and BG-E2 clone :)
I bet every BG works the same ;)
Canon EOS 6D, 60D, 50D.
Sigma 70-200 EX OS HSM, Sigma 70-200 Apo EX HSM, Samyang 14 2.8, Samyang 35 1.4, Samyang 85 1.4.
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WaltMarsh

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Re: Swapping Batteries in Battery Grip
« Reply #7 on: July 13, 2012, 04:57:38 PM »
Can you confirm that this works?:
- Start with the lid open and two batteries
- Power up camera
- Hotswap one battery
- Camera doesn't shutdown

If so, I'll have a look at the firmware to see if I can spot something

Yes this works.
Canon 5DMK2, 28mm+50mm+85mm Zeiss Primes, 28-75mm+75-200mm Tamron,Tascam DR-40, other stuff too :-)

Malcolm Debono

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Re: Swapping Batteries in Battery Grip
« Reply #8 on: July 13, 2012, 05:26:30 PM »
I bet every BG works the same ;)

Unfortunately it won't work with newer grips since now the compartment opens from the side, and you need to eject the tray containing both batteries to replace any one of them (see picture below).

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ilguercio

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Re: Swapping Batteries in Battery Grip
« Reply #9 on: July 13, 2012, 06:52:00 PM »
Unfortunately it won't work with newer grips since now the compartment opens from the side, and you need to eject the tray containing both batteries to replace any one of them (see picture below).


That's for rebel only, am i correct?
Canon EOS 6D, 60D, 50D.
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KeeganBaird

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Re: Swapping Batteries in Battery Grip
« Reply #10 on: July 13, 2012, 07:02:26 PM »
That's for rebel only, am i correct?

My Meike brand grip for my 60d slide out like this...

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Re: Swapping Batteries in Battery Grip
« Reply #11 on: July 14, 2012, 12:50:39 AM »
Both of my grips slide out to the side. I don't think there is even anything besides +/- on the grip anyway.

Does the battery meter even work with most grips? I think on my 400D it seems to and its a tavor grip. On the 600D my meike grip reports full.. hardly ever 2 bars and then "change the battery pack."