"Change or Charge Battery" Error or Bug with Canon R5 Mark II

[wackinwuss]

That sounds like good news. I opened up a new ticket today in reference to the closed one. It contains additional information and test results. hopefully I'll get a similar response. Do you mind asking me which service centre you are dealing with? I am in Canada, so dealing with the central service centre in Brampton, ON.

I’m dealing with the Virginia service center

 

[SHK1]

I’m dealing with the Virginia service center

I received a response to my ticket yesterday that was basically a thanks for the additional information and that they were looking into to and would get back to me with findings. Then the ticket was closed. I felt a little frustrated, but today they reached out to see if I was using a 3rd party or OEM charger which at least gives me some hope something is going on behind the scenes.

 

[OldDudePhotog]

I received a response to my ticket yesterday that was basically a thanks for the additional information and that they were looking into to and would get back to me with findings. Then the ticket was closed. I felt a little frustrated, but today they reached out to see if I was using a 3rd party or OEM charger which at least gives me some hope something is going on behind the scenes.

during my test, I only used OEM batteries and chargers.

 

[speedtriple]

Did a 1.5 hour photowalk in -5 C. Absolutely no battery problem this time.
Used Hahnel Procube 2 for charging.
FW 1.0.2, and first time I used the R5II in cold weather with this FW.

 

[SHK1]

Did a 1.5 hour photowalk in -5 C. Absolutely no battery problem this time.
Used Hahnel Procube 2 for charging.
FW 1.0.2, and first time I used the R5II in cold weather with this FW.

The more I pay attention to this I'm starting to notice that there seems to be a threshold where things just fall off a cliff. Some days I'm ok in -5C if the camera is warming a little from catching some sun or my hand is on the grip a lot. Yesterday was about -7C and the battery did ok, but I was in full sun. Today it was -7C, but I was in the woods and it was overcast and I had the same drain happen.

 

[haru]

wLP-E6P‚ÌŒ´ˆö•s–¾‚̃gƒ‰ƒuƒ‹x CANON EOS R5 Mark II ƒ{ƒfƒB ‚̃Nƒ`ƒRƒ~ŒfŽ¦”Â

¡ÅˆÀ‰¿Ši(Åž)F541,805‰~@¡’†ŒÃ‰¿Ši‘ÑiÅžjF498,900‰~`588,300‰~@¡‰¿Ši.com”„‚ê‹Øƒ‰ƒ“ƒLƒ“ƒOF12ˆÊ@¡–ž‘«“xƒŒƒrƒ…[F4.40(35l)@¡ƒNƒ`ƒRƒ~F3040Œ i¦6ŒŽ14“úŽž“_j

bbs.kakaku.com

I'd like to share some information I found regarding battery issues.

A Japanese user contacted Canon support and was told that overcharging by a third-party charger is likely the cause of the problem.

Additionally, another user commented that the problem stopped occurring when they used the battery until it was completely empty at room temperature and then charged it with the genuine charger.

Has anyone else experienced similar issues or found solutions?

 

[speedtriple]

wLP-E6P‚ÌŒ´ˆö•s–¾‚̃gƒ‰ƒuƒ‹x CANON EOS R5 Mark II ƒ{ƒfƒB ‚̃Nƒ`ƒRƒ~ŒfŽ¦”Â

¡ÅˆÀ‰¿Ši(Åž)F541,805‰~@¡’†ŒÃ‰¿Ši‘ÑiÅžjF498,900‰~`588,300‰~@¡‰¿Ši.com”„‚ê‹Øƒ‰ƒ“ƒLƒ“ƒOF12ˆÊ@¡–ž‘«“xƒŒƒrƒ…[F4.40(35l)@¡ƒNƒ`ƒRƒ~F3040Œ i¦6ŒŽ14“úŽž“_j

bbs.kakaku.com

I'd like to share some information I found regarding battery issues.

A Japanese user contacted Canon support and was told that overcharging by a third-party charger is likely the cause of the problem.

Additionally, another user commented that the problem stopped occurring when they used the battery until it was completely empty at room temperature and then charged it with the genuine charger.

Has anyone else experienced similar issues or found solutions?

Only had this problem with the FW which came with R5m2 in october, that time the initial charge of batteies was done with the Hahnel Procube 2...did recharge al batteries with Canon-charger.

After FW 1.0.2 no issues in cold weather, so far.

Still using Hahnel Procube 2 without issues. Yesterday 2 hrs out in 2C (which also was the conditions that did cause the problem in october).
So cannot say it is due to which charger.

 

[Del Paso]

wLP-E6P‚ÌŒ´ˆö•s–¾‚̃gƒ‰ƒuƒ‹x CANON EOS R5 Mark II ƒ{ƒfƒB ‚̃Nƒ`ƒRƒ~ŒfŽ¦”Â

¡ÅˆÀ‰¿Ši(Åž)F541,805‰~@¡’†ŒÃ‰¿Ši‘ÑiÅžjF498,900‰~`588,300‰~@¡‰¿Ši.com”„‚ê‹Øƒ‰ƒ“ƒLƒ“ƒOF12ˆÊ@¡–ž‘«“xƒŒƒrƒ…[F4.40(35l)@¡ƒNƒ`ƒRƒ~F3040Œ i¦6ŒŽ14“úŽž“_j

bbs.kakaku.com

I'd like to share some information I found regarding battery issues.

A Japanese user contacted Canon support and was told that overcharging by a third-party charger is likely the cause of the problem.

Additionally, another user commented that the problem stopped occurring when they used the battery until it was completely empty at room temperature and then charged it with the genuine charger.

Has anyone else experienced similar issues or found solutions?

Nope, since I never use non-OEM battery chargers. And the issue remains with OEM batteries, bur "disappears" with Neewer 3rd. party batteries. Strange, isn't it?
The use of 3rd. party chargers sounds to me like a very cheap explanation by Canon Support, still refusing to acknowledge the existence of a problem.

 

[wackinwuss]

Nope, since I never use non-OEM battery chargers. And the issue remains with OEM batteries, bur "disappears" with Neewer 3rd. party batteries. Strange, isn't it?
The use of 3rd. party chargers sounds to me like a very cheap explanation by Canon Support, still refusing to acknowledge the existence of a problem.

They acknowledge it; just nothing they can solve currently.. hopefully soon. A whole winter season wasted because of it for me now.
Do 3rd party work?

 

[Del Paso]

They acknowledge it; just nothing they can solve currently.. hopefully soon. A whole winter season wasted because of it for me now.
Do 3rd party work?

What they acknowledge is just the compatibility issue with older batteries. Not the quick discharging, at least I haven't read any Canon statement about it.

 

[wackinwuss]

What they acknowledge is just the compatibility issue with older batteries. Not the quick discharging, at least I haven't read any Canon statement about it.

Here is the last correspondence I’ve received from CPS (their workaround solution isn’t accurate, but they do acknowledge they are working on the cold weather battery drain).

​

Good morning,​

​

I apologize for not getting back with you sooner. I forwarded the image to our Higher Headquarters. Here are the notes from our Master Craftsman,​

​

Canon Inc. is aware of the issue. The problem only occurs using the new LP-E6P battery in very low temps. They are working on a solution so we will not hear back until they have a solution.​

​

I confirmed with him that if you use an older model battery like the LP-E6NH it won’t drain as fast in low temperatures. If you’d like to discuss over the phone, you can call my direct line at​

 

[Del Paso]

Here is the last correspondence I’ve received from CPS (their workaround solution isn’t accurate, but they do acknowledge they are working on the cold weather battery drain).

​

Good morning,​

​

I apologize for not getting back with you sooner. I forwarded the image to our Higher Headquarters. Here are the notes from our Master Craftsman,​

​

Canon Inc. is aware of the issue. The problem only occurs using the new LP-E6P battery in very low temps. They are working on a solution so we will not hear back until they have a solution.​

​

I confirmed with him that if you use an older model battery like the LP-E6NH it won’t drain as fast in low temperatures. If you’d like to discuss over the phone, you can call my direct line at​

Good news! Thanks!
Yet, this won't solve my issue with the LP-E6P, draining at high speed even in very moderate temperatures (+12° celsius).
My workaround is using inexpensive Chinese Neewer batteries, which drain at the usual speed, unlike these horrible and expensive OEMs.
PS: First time I'm using 3rd. party batteries...but not the last!

 

[Del Paso]

Here is the last correspondence I’ve received from CPS (their workaround solution isn’t accurate, but they do acknowledge they are working on the cold weather battery drain).

​

Good morning,​

​

I apologize for not getting back with you sooner. I forwarded the image to our Higher Headquarters. Here are the notes from our Master Craftsman,​

​

Canon Inc. is aware of the issue. The problem only occurs using the new LP-E6P battery in very low temps. They are working on a solution so we will not hear back until they have a solution.​

​

I confirmed with him that if you use an older model battery like the LP-E6NH it won’t drain as fast in low temperatures. If you’d like to discuss over the phone, you can call my direct line at​

I went for a walk this afternoon, with 2 fully loaded batteries: LP-E6P and Neewer. 18° celsius.
Took 40 pictures with each of them with the R5 II.
Canon LP: 72% left
Neewer: 97% left
Canon LP-E6P: 120 euro
Neewer: 32 euro (4 cost hardly more than 1 OEM)
No comment...

 

[wackinwuss]

I went for a walk this afternoon, with 2 fully loaded batteries: LP-E6P and Neewer. 18° celsius.
Took 40 pictures with each of them with the R5 II.
Canon LP: 72% left
Neewer: 97% left
Canon LP-E6P: 120 euro
Neewer: 32 euro (4 cost hardly more than 1 OEM)
No comment...

Wow.. well that’s good to know. Pathetic of canon.. but glad there’s an option

 

[tron]

Since I do not have much time and I have rather too much of equipment my solution (or not) to R5mkII battery issue is: Not buying R5mkII

Problem solved (albeit only for me!)

Unfortunately the serious answer is the same as there is still no solution to this.

Anyway R5 is a more than a very decent camera so I do not miss the mark 2.

 

[speedtriple]

As mentioned, experienced it in 2024, and after no issues since then, I recently did get the red "Change or Charge Battery" error message again.
Now on FW1.0.3.

The batteries LP-E6P and R52 where outside overnight in about 0-2 deg C and were at equal temperature.
LP-E6P all fully charged to 100% the evening before.

Tried a second battery with same result, then warmed a battery in hand for few minutes, reinserted battery, and then camera started up.
But the fps speed indicator was flashing white "H". After about some/5 minutes of use the fps indicator turned green and now indicated "H+", as it should with a 100% battery.

I guess after few minutes of use with eye-detect focus and more, the internal electronics got somewhat warmed up.
I doubt the battery would have time to reach some temperature from the electronics in that short timespan, it is encased in its own plastic etc.
This leads me to think it might be the internal electronics temperature/circuit board that triggers this false voltage/battery warning?
Hopefully a FW update might solve this later.

But this is a tricky one, because I have used the R52 in sub zero celcius temperatures few times this winter without issues since the issue I did have in october 2024.
Anyhow, next use I will keep batteries warm before inserting, would be frustrating to miss a shot.

On my old R5m1 I never had this issue, with lots of cold weather use on that one.

 

[tron]

speedtriple​

Thanks for the info. I hope the issue is firmware related and that Canon will eventually solve it. I do not/cannot take a lot of photos these days and my R5 (complemented with Z8 for Birds in Flight) is good enough so I wait.

​