New M11 Battery

[ronaldc]

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Hi guys,

what’s the best way to bed the new battery in ? Charge to 100 and run it down to 0 ? Then charge to 80 ?

or is calibration needed at all ?

 

thanks

[pedaes]

22 minutes ago, ronaldc said:

what’s the best way

Welcome to the Forum!

I think if it was in anyway important it would give instructions/advice in the Manual.

[ronaldc]

5 minutes ago, pedaes said:

Welcome to the Forum!

I think if it was in anyway important it would give instructions/advice in the Manual.

Ah ok thank you 

[Chuck Albertson]

Charge it to full power, discharge to zero, 2 or 3 times. Repeat every 25 cycles or so.

[ronaldc]

25 minutes ago, Chuck Albertson said:

Charge it to full power, discharge to zero, 2 or 3 times. Repeat every 25 cycles or so.

thank you very much, I will do this. 

[cmoxon]

There is nothing you need to do to “condition” a modern battery. Contrary to the advice above - avoid deep discharging. Limit the number of times your battery goes to fully zero percent and be judicious about when you need to charge it beyond 80%. That will truly maximise the battery life. Also, keep your battery at room temperature for as much of its life as possible.

Enjoy your new battery!

[username]

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I was under the impression the battery of the M11 series is just there for making the camera work again by taking it out and putting it back in again after a freeze?

Jokes aside, @ronaldc the M11's battery is a Lithium-Ion one, if you interested in details about caring for those kind of batteries check this link -
https://www.tek.com/en/documents/technical-brief/lithium-ion-battery-maintenance-guidelines

In a nutshell: don't worry about it, just use it - just don't charge to 100% and then not use the camera, ideally (this is also why modern iPhones etc. learn your usage habits, and defer charging to 100% until shortly before you need to use the phone, or why mac laptops don't even charge to 100% automatically, when they learn that they're being used plugged-in to the mains anyway usually 👍

[LBJ2]

18 hours ago, ronaldc said:

Hi guys,

what’s the best way to bed the new battery in ? Charge to 100 and run it down to 0 ? Then charge to 80 ?

or is calibration needed at all ?

 

thanks

I found everything I needed to know about how to handle Leica batteries by reading the super tiny printed *Notes section on the Leica battery manual that comes in the battery box. These notes include what @Chuck Albertson posted above:

"Charge it to full power, discharge to zero, 2 or 3 times. Repeat every 25 cycles or so." 

Or as others commented, don't worry about it and time will tell...or not 😎

Personally, ever since I took a few minutes to read the battery manual, I practice what Chuck posted and the battery manual recommends with all my brand new Leica batteries and then going forward whenever I think about it +/- every 25 cycles or so. 

Edited December 24, 2024 by LBJ2

[jakontil]

My rule of thumb about the lithium batter is to never discharge it under 20%, but on rare occasions if it goes down all the way it’s fine, just dont make it a habit

[ronaldc]

Thanks so much guys, I will cycle it 2 or 3 times and then every 25 or so, after cycle I will regular charge to 80 and deplete at to 40 and charge. I’d rather try look after this M11 battery as there not cheap and also it’s a Glossy M11 so you can’t buy the Glossy Batteries separate. 

[pedaes]

1 hour ago, ronaldc said:

deplete at to 40 and charge

 

1 hour ago, ronaldc said:

you can’t buy the Glossy Batteries separate. 

I would not get anal about it. The camera is for using.

Are you sure GBP batteries not available? That would be very remiss of Leica.

[ronaldc]

3 hours ago, pedaes said:

 

I would not get anal about it. The camera is for using.

Are you sure GBP batteries not available? That would be very remiss of Leica.

So far yes not available to purchase, 

[jaapv]

On 12/23/2024 at 11:29 PM, Chuck Albertson said:

Charge it to full power, discharge to zero, 2 or 3 times. Repeat every 25 cycles or so.

Not really needed, as Lithium batteries have no memory effect. The only thing you are doing with frequent full discharge cycles is wear the battery out sooner.

[Steve Ash]

vor 15 Stunden schrieb jakontil:

My rule of thumb about the lithium batter is to never discharge it under 20%, but on rare occasions if it goes down all the way it’s fine, just dont make it a habit

Deep discharges of lithium-ion batteries are not recommended, even occasionally, as they can lead to irreversible damage and reduced lifespan. Fully discharging below the safe voltage threshold can cause:

- **Electrode Damage**: Copper dissolution and deposition can create dendrites, leading to internal short circuits[1][6].
- **Capacity Loss**: Deep discharges accelerate degradation and reduce the battery's efficiency and cycle life[3][5].
- **Physical Stress**: Repeated deep discharges may cause swelling or deformation[2][4].

Instead, shallow discharges (e.g., recharging at 20–50% capacity) are advised to minimize stress and prolong battery life[4][5].

Quellen
[1] If Li-Ion battery is deeply discharged, is it harmful for it to remain in ... https://electronics.stackexchange.com/questions/164103/if-li-ion-battery-is-deeply-discharged-is-it-harmful-for-it-to-remain-in-this-s
[2] What actually happens when lithium batteries are over-charged or ... https://www.jauch.com/blog/en/what-actually-happens-when-lithium-batteries-are-over-charged-or-deep-discharged/
[3] Is It Harmful To Completely Discharge A Lithium-ion Battery? https://grenerpower.com/blogs/blog-posts/is-it-harmful-to-completely-discharge-a-lithium-ion-battery
[4] Is it harmful to completely discharge a lithium-ion battery? https://timeusbpower.de/en/blogs/news-en/is-it-harmful-to-completely-drain-a-lithium-ion-battery
[5] Is it Bad to Fully Discharge a Lithium-ion Battery - LiTime-US https://www.litime.com/blogs/blogs/is-it-bad-to-fully-discharge-a-lithium-ion-battery
[6] Studies on the deposition of copper in lithium-ion batteries during ... https://www.nature.com/articles/s41598-021-85575-x
[7] Mechanism of the entire overdischarge process and ... - Nature https://www.nature.com/articles/srep30248
[8] [PDF] Safe Handling and Deep-discharging of End-of-Life Battery Modules ... https://repo.uni-hannover.de/bitstream/handle/123456789/17973/Wanner_2024-Safe_Handling.pdf?sequence=1
 

[ronaldc]

23 minutes ago, Quarterpounder said:

"Glossy" batteries? Would anyone really care?

Well yeah ofc, the bottom plate will patina with brass, would look odd with a non glossy battery 

[Chuck Albertson]

16 hours ago, jaapv said:

Not really needed, as Lithium batteries have no memory effect. The only thing you are doing with frequent full discharge cycles is wear the battery out sooner.

That's what's in the manual (all of them). I give the manufacturers some credit for knowing how their products work.

[pgk]

20 hours ago, pedaes said:

I would not get anal about it. The camera is for using.

Exactly. I still have M8 batteries which work ok and I've never paid any attention to doing anything other than using them as I need to and charging them when I need to.

[JimmyCheng]

for modern lithium batteries, the only thing to avoid is fully discharge it and let it sit. That deteriates the battery pretty quickly. Otherwise, even leaving it charged whenever you can won't affect the battery life that much. 

[Tseg]

I took my M11-D for a walk this morning and took about 100 snaps.  My battery went from 85% to 80%.   The battery lasts forever in this camera without an LCD.

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Hallo,

Look here: Interesting Leica gear

[jakontil]

18 hours ago, Steve Ash said:

Deep discharges of lithium-ion batteries are not recommended, even occasionally, as they can lead to irreversible damage and reduced lifespan. Fully discharging below the safe voltage threshold can cause:

- **Electrode Damage**: Copper dissolution and deposition can create dendrites, leading to internal short circuits[1][6].
- **Capacity Loss**: Deep discharges accelerate degradation and reduce the battery's efficiency and cycle life[3][5].
- **Physical Stress**: Repeated deep discharges may cause swelling or deformation[2][4].

Instead, shallow discharges (e.g., recharging at 20–50% capacity) are advised to minimize stress and prolong battery life[4][5].

Quellen
[1] If Li-Ion battery is deeply discharged, is it harmful for it to remain in ... https://electronics.stackexchange.com/questions/164103/if-li-ion-battery-is-deeply-discharged-is-it-harmful-for-it-to-remain-in-this-s
[2] What actually happens when lithium batteries are over-charged or ... https://www.jauch.com/blog/en/what-actually-happens-when-lithium-batteries-are-over-charged-or-deep-discharged/
[3] Is It Harmful To Completely Discharge A Lithium-ion Battery? https://grenerpower.com/blogs/blog-posts/is-it-harmful-to-completely-discharge-a-lithium-ion-battery
[4] Is it harmful to completely discharge a lithium-ion battery? https://timeusbpower.de/en/blogs/news-en/is-it-harmful-to-completely-drain-a-lithium-ion-battery
[5] Is it Bad to Fully Discharge a Lithium-ion Battery - LiTime-US https://www.litime.com/blogs/blogs/is-it-bad-to-fully-discharge-a-lithium-ion-battery
[6] Studies on the deposition of copper in lithium-ion batteries during ... https://www.nature.com/articles/s41598-021-85575-x
[7] Mechanism of the entire overdischarge process and ... - Nature https://www.nature.com/articles/srep30248
[8] [PDF] Safe Handling and Deep-discharging of End-of-Life Battery Modules ... https://repo.uni-hannover.de/bitstream/handle/123456789/17973/Wanner_2024-Safe_Handling.pdf?sequence=1
 

Hi steve, thanks for elaborating more in details, but that’s what i mean, just keep using the batter, dont worry bout overcharging, instead mind you when battery down below 20%, that’s what i have been doing since the day lithium was introduced in our daily electronics and i seem oke