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M10 Batteries. Availability (merged thread)

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jdlaing

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9 hours ago, o2mpx said:

If a new original Leica battery doesn’t get charged and stay in box as spare, will it function as new when it’s called into service when needed?

If left in the box too long it will die.

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weatherproof

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On 7/4/2025 at 8:28 AM, o2mpx said:

If a new original Leica battery doesn’t get charged and stay in box as spare, will it function as new when it’s called into service when needed?

 

Recently bought a new battery from B&H with date code 0625VB and it arrived totally empty. Was anyone else's new M10 battery like this?

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TomB_tx

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36 minutes ago, weatherproof said:

 

Recently bought a new battery from B&H with date code 0625VB and it arrived totally empty. Was anyone else's new M10 battery like this?

I bought a new one a while back that also seemed empty but charged fine and works well.

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Fresno

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Bargain price….    If they arrive (7/22-8/4),  I will review them.

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  • jaapv changed the title to M10 Batteries. Availability (merged thread)
84bravo

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12 hours ago, Fresno said:

Bargain price….    If they arrive (7/22-8/4),  I will review them.

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I bought one on a whim just to try it out. So far so good.

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jdlaing

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bernstein1234

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On 7/8/2025 at 3:20 AM, weatherproof said:

 

Recently bought a new battery from B&H with date code 0625VB and it arrived totally empty. Was anyone else's new M10 battery like this?

Safety regulations

 

On 7/8/2025 at 3:58 AM, TomB_tx said:

I bought a new one a while back that also seemed empty but charged fine and works well.

 

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TomB_tx

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On 7/19/2025 at 4:41 PM, TomB_tx said:

Just received one of these - charging now, will see how it does.

OK - It charged fine and my M10 worked with it. However, the camera battery meter always said 100% for 3 days before the camera announced the battery was very low and refused to work. I had the same situation with an M9 aftermarket battery. So: usable, but not reliable as it doesn't monitor the charge properly in the camera.

I also just received the Cameron Sino version mentioned a few posts above, and will change and try it next. I put it as-received in the M10 and the camera reported 45% - so it might report charge better.

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TomB_tx

TomB_tx

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OK, I've tried the Cameron Sino brand that Amazon sells, and it may be a more viable substitute for the genuine Leica M10 battery. I used it for a few days with power saving turned off so I could check what the camera reported as charge level. First I charged it on the Leica charger, and when the charger indicated 80% I put the battery in the camera to see what it said - which was 45%... Then I continued charging until it reached full charge. The camera reported 100%, and just taking snapshots around the house didn't seem to drop from that. so I wondered. But checked the next day - 65%, and while using it for a couple days saw 45%, 40%, I think 35%, and finally 15% as the camera got sluggish.

So it does give an indication of charge in the camera, which the other aftermarket didn't seem to do.

Can't compare life to real M10 batteries yet, but even they self-drain at a substantial rate, so for the huge cost difference the Cameron Sino may make sense. I'll keep using my genuine M10 batteries and use this as a backup.

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TomB_tx

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OK, after I removed the Cameron Sino battery indicating 15% I charged it in the Leica charger until it indicated full charge. Later I put it back in the M10, and the M10 still shows 15% charge, but the camera is working fine. So I'd say the aftermarket battery companies still don't really duplicate the charge communication between the battery and M10. The basic batteries seem OK, fit the camera well and run it, but for reliable indication of remaining charge use the Leica branded battery.

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dabrez

dabrez

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Thanks Tom, I appreciate the information. For me it sounds like I'll stick with Leica batteries. It's worth the additional cost to know how much life I have left in my battery. Going with the Cameron Sino battery as a back up, I would always need to carry. spare to make sure the spare battery has a back up!

Dave

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mort linder

mort linder

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with some of the aftermarket m8 batteries ,  they have to be fully discharged before recharging to read charge level in the camera . 

maybe these m10 batteries are the same .  also , maybe it has to be used and charged a few time to develop full capability . i purchased

one and am using it now , so we shall see . 

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TomB_tx

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4 hours ago, mort linder said:

with some of the aftermarket m8 batteries ,  they have to be fully discharged before recharging to read charge level in the camera . 

maybe these m10 batteries are the same .  also , maybe it has to be used and charged a few time to develop full capability . i purchased

one and am using it now , so we shall see . 

Thanks for the suggestion - I'll try that with both of these!

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TomB_tx

TomB_tx

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On 7/25/2025 at 6:09 PM, TomB_tx said:

Thanks for the suggestion - I'll try that with both of these!

I'm about to give up on the two aftermarket "BP-SCL5" batteries I bought. I had one in my M10 for a few weeks, just taking the odd test shot every few days while it continued to show "15%" as it had since fully charging it on the M10 charger. Then yesterday the M10 wouldn't power on. So I swapped the battery for the other aftermarket one that had been charged to show 100% in the camera and stored for the same few weeks. The M10 wouldn't power on with it either.

So I put in a genuine M10 battery that was charged about the same 3 weeks ago, and the camera started right up showing 90% charge.

I had also bought a Nitecore dual M10 battery charger to try with these aftermarket batteries, so I loaded both into it. The Nitecore has a nice LCD screen that that shows details about the process including cell voltage, mA charging rate, and mAH state of charge, and an evaluation of battery condition. One battery was judged "POOR" and the other "GOOD" after letting them sequentially charge overnight. They did seem to charge up to rated voltage, and both show 100% on both the Nitecore and M10. But a complete self-discharge in 3 weeks is discouraging. So reliability is even more suspect.

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charlesphoto99

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41 minutes ago, TomB_tx said:

I'm about to give up on the two aftermarket "BP-SCL5" batteries I bought. I had one in my M10 for a few weeks, just taking the odd test shot every few days while it continued to show "15%" as it had since fully charging it on the M10 charger. Then yesterday the M10 wouldn't power on. So I swapped the battery for the other aftermarket one that had been charged to show 100% in the camera and stored for the same few weeks. The M10 wouldn't power on with it either.

So I put in a genuine M10 battery that was charged about the same 3 weeks ago, and the camera started right up showing 90% charge.

I had also bought a Nitecore dual M10 battery charger to try with these aftermarket batteries, so I loaded both into it. The Nitecore has a nice LCD screen that that shows details about the process including cell voltage, mA charging rate, and mAH state of charge, and an evaluation of battery condition. One battery was judged "POOR" and the other "GOOD" after letting them sequentially charge overnight. They did seem to charge up to rated voltage, and both show 100% on both the Nitecore and M10. But a complete self-discharge in 3 weeks is discouraging. So reliability is even more suspect.

I think this pretty much proves there's a proprietary chip in the Leica batteries, and the reason nobody tried to duplicate them until there was a 'crisis.' These mfg just tried to do a bypass of that chip, with obvious varying results. 

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jdlaing

jdlaing

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4 hours ago, charlesphoto99 said:

I think this pretty much proves there's a proprietary chip in the Leica batteries, and the reason nobody tried to duplicate them until there was a 'crisis.' These mfg just tried to do a bypass of that chip, with obvious varying results. 

Not so much a proprietary chip as just a chip with proprietary programming.

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