LP-E6 batteries not working on new EOS R5 MII

[gavilan]

I have two LP-E6 batteries from my 5D SR camera and neither will power up a new R5 MII. One is Canon, one is 3rd party, both are fully charged and provide long service on the 5D. I put either in the R5 and it doesn't power up at all.

Everything I read says the E6 is compatible and will run the camera (perhaps for less time) the same as the new LP-E6P that came with the new camera.

Thoughts? Thanks in advance.

[Tronhard · Accepted solution]

Hi Gavilan and welcome:
There may be some confusion here.   The R5MkII requires a greater energy sources to operate its many new features.  The R5II will work, to a limited degree with fully-charged LP-E6NH batteries, but I am pretty sure it will not operate with battery models earlier than that because of their lower energy capacity.  Here are the energy output levels for the various models: 
1.  LP-E6: 1800mAh @ 2Amps 
2. LP-E6N: 1865mAh @2Amps
3. LP-E6NH: 2750mAh @ 2Amps
4. LP-E6P 2130mAh @ 6Amps. 
So, if you want to have the full functionality of the camera body, get the LP-E6P.  If you want to wait, I expect some reputable after market manufacturers will start producing batteries for it. Still, for maximum peace of mind and convenience, you might want to bite the bullet and get at least one one Canon unit.

[Tronhard · Accepted solution]

Hi Gavilan and welcome:
There may be some confusion here.   The R5MkII requires a greater energy sources to operate its many new features.  The R5II will work, to a limited degree with fully-charged LP-E6NH batteries, but I am pretty sure it will not operate with battery models earlier than that because of their lower energy capacity.  Here are the energy output levels for the various models: 
1.  LP-E6: 1800mAh @ 2Amps 
2. LP-E6N: 1865mAh @2Amps
3. LP-E6NH: 2750mAh @ 2Amps
4. LP-E6P 2130mAh @ 6Amps. 
So, if you want to have the full functionality of the camera body, get the LP-E6P.  If you want to wait, I expect some reputable after market manufacturers will start producing batteries for it. Still, for maximum peace of mind and convenience, you might want to bite the bullet and get at least one one Canon unit.

[p4pictures · Accepted solution]

The manual mentions that the original LP-E6 cannot be used with the EOS R5 Mark II. The newer LP-E6N and LP-E6NH can be used with some limitations in functionality.

https://cam.start.canon/en/C017/manual/html/UG-00_Before_0080.html 

[gavilan]

Thanks to you both. I did not note anything in the manual (the sucker is huge -- something like 1200 pages), but did Google it and got the answer that it is compatible, which is evidently wrong. AI hallucinations strike again.

Anyway, of the two batteries I have for my older 5D, one is a Canon LP-E6, 1800mAh and the other is an after-market LP-E6NH 2750mAh. Interesting that even that stronger one doesn't work. In the meantime, I have, in fact, bitten the proverbial bullet and ordered another LP-E6P so I'm covered on my upcoming road trip. 

[p4pictures]

I have found several non-Canon brand high capacity LP-E6NH type batteries report to the camera that they are LP-E6 type, not LP-E6N or LP-E6NH. When the EOS R5 Mark II sees a battery that indicates it is LP-E6 then it won't work. I also note that the older DR-E6 dc coupler will also not work with the EOS R5 Mark II, and the new DR-E6P has to be used. 

[Tronhard]

Batteries rated with Amperage are stating the highest level of energy they are designed to give at a given moment in time for short periods (such as starting an engine). Batteries rated with Ampere Hour are stating how many amps they can supply over a period of time, the industry standard being 20 hours.  So the older batteries will have a smaller energy level potential, but may deliver that lower energy over a longer period, but that doesn't help when the camera demands a high intensity of energy which is a demand of some of these new features in the R5II.