Test/review of Molicel INR21700-P42A 4200mAh (Gray)

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HKJ
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Test/review of Molicel INR21700-P42A 4200mAh (Gray)

Molicel INR21700-P42A 4200mAh (Gray)
DSC_5264
Official specifications:


  • Rated typical capacity: 4200mAh
  • Rated minimum capacity: 4000mAh
  • Nominal voltage: 3.6V
  • Standard charge current: 4.2A
  • Maximum charge current: 8.4A
  • End of charge voltage: 4.20V +/-0.05V
  • Continuous discharge current: 45A (Cycle life is reduced at high rates)
  • End of discharge voltage: 2.5V
  • Typical impedance:
  • Cycle life: 500 cycles at 4.2A charge and 10A discharge for 80%
  • Operating temperature: Charging: -20°C ~ 60°C, Discharging: -40°C ~ 60°C
  • Storage temperature:

Molicel%20INR21700-P42A%204200mAh%20(Gray)-info
This is a 21700 high current cell with good capacity.
DSC_5263
DSC_5265 DSC_5266
DSC_5267
DSC_5268
Molicel%20INR21700-P42A%204200mAh%20(Gray)-Capacity
The two cells match just about perfect and capacity do not really change with load.
Molicel%20INR21700-P42A%204200mAh%20(Gray)-Temp-20.0
Molicel%20INR21700-P42A%204200mAh%20(Gray)-Temp-30.0
I forgot the temperature sensor with the first battery.
Molicel%20INR21700-P42A%204200mAh%20(Gray)-CapacityTimeHours
Molicel%20INR21700-P42A%204200mAh%20(Gray)-CapacityTime
Molicel%20INR21700-P42A%204200mAh%20(Gray)-Energy
Molicel%20INR21700-P42A%204200mAh%20(Gray)-PowerLoadTime
Molicel%20INR21700-P42A%204200mAh%20(Gray)-TripCurrent
Molicel%20INR21700-P42A%204200mAh%20(Gray)-Charge
Conclusion
This is good high current cells.
Notes and links
The batteries was supplied by N-Power Energy for review.
How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Graphical comparison to 26650 and other batteries
Table with all tested LiIon batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Edited by: HKJ on 02/22/2019 - 11:50
Agro
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Beats 40T except for the very first moment. Really, really good cell. Smile

BTW, you have a typo in a link, 16650 instead of 26650.

HKJ
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Agro wrote:
BTW, you have a typo in a link, 16650 instead of 26650.

Thanks, it is fixed now.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Superstocker
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I’ve been using your reviews for a long time. Thank you for all your work. Great test and very helpful.

HKJ
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Superstocker wrote:
I’ve been using your reviews for a long time. Thank you for all your work. Great test and very helpful.

I hope a lot of people can get something useful out of my reviews.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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Agro wrote:
Beats 40T except for the very first moment. Really, really good cell. Smile

Yeah, I just looked at the Comparator. The 40T is the only one that comes close, and it is very close, but this Molicel beats it except right at the beginning, like you said.

Li-Ion Wholesale has these Molicel’s and they claim to be the “Exclusive Distributor” in the USA. Their price is $12.99 Volume discounts are available if buying more than 4 cells.

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DavidEF wrote:

Li-Ion Wholesale has these Molicel’s and they claim to be the “Exclusive Distributor” in the USA. Their price is $12.99 Volume discounts are available if buying more than 4 cells.

Yes,,,my hometown dealer is the ONLY authorized USA Distributor of this cell and the other Two[20700/18650-P26A] Molicel flavors that it sells! Thumbs Up
I have the 18650P26A cells in my TN42vn 90,,,,,,,,,,they are also GREAT cells!

https://liionwholesale.com/collections/batteries/molicel-npe

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SKV89
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Wow these Molicels are real impressive. Beats the 40T especially in the lower currents below 7A, which is the majority of the use cases. 21700 performance is really progressing fast.

klrman
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Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

everydaysurvivalgear
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Thanks for the review HKJ. The name of the company makes me LOL.

vapcell Dennis
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Great molicel P42A ,Thanks HKJ Thumbs Up

vapcell Dennis
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Hey @HKJ,are you not doing constant current discharge tests for more than 30A now because the battery holder burned down?

Some high drain batteries, such as 30T, 20s, we would like to see 35A or even 40A tests.

If this is the reason, I think it can be solved.. Blushing

HKJ
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vapcell Dennis wrote:
Hey @HKJ,are you not doing constant current discharge tests for more than 30A now because the battery holder burned down?

Some high drain batteries, such as 30T, 20s, we would like to see 35A or even 40A tests.

If this is the reason, I think it can be solved.. Blushing

There are two reasons for the 30A limit:
1) My clamps has a tendency to melt.
2) More work, my standard automatic test station only goes to 30A, for higher current I have to move to my main work/test station that has 4 30A load I can use in parallel (My software support this and I have used it for some tests).

It is very few batteries that really need to be tested above 30A.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

vapcell Dennis
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HKJ wrote:
vapcell Dennis wrote:
Hey @HKJ,are you not doing constant current discharge tests for more than 30A now because the battery holder burned down?

Some high drain batteries, such as 30T, 20s, we would like to see 35A or even 40A tests.

If this is the reason, I think it can be solved.. Blushing

There are two reasons for the 30A limit:
1) My clamps has a tendency to melt.
2) More work, my standard automatic test station only goes to 30A, for higher current I have to move to my main work/test station that has 4 30A load I can use in parallel (My software support this and I have used it for some tests).

It is very few batteries that really need to be tested above 30A.

Thank you very much for your reply.

It’s just my personal need. Maybe the same fans want to get more current data.

Take the molicel P42A specification as an example. The maximum discharge here is 45A. I hope to see the discharge data of 45A. Their batteries are also used in many high-end areas and are trustworthy.

Some batteries are overloaded and still discharge to a good capacity, but some batteries have a rapid voltage drop, such as the 14500, 18350, 16340 batteries you tested, which is very common.

It’s just my personal advice. I’m very supportive of your work.

Thank you again for your hard work Smile

shadockan
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klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

vapcell Dennis
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shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

shadockan
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vapcell Dennis wrote:
shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

The truth is that I do not remember where I read it …..
Unfortunately …..
I think I had read it here, but I’m not sure.

On a personal level, I would like it to be untrue … and MNKE will continue to be on the market ……

vapcell Dennis
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shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

The truth is that I do not remember where I read it …..
Unfortunately …..
I think I had read it here, but I’m not sure.

On a personal level, I would like it to be untrue … and MNKE will continue to be on the market ……

Ok, Thanks。 I have news here that mnke batteries are made in Jiangsu, not in Guangdong.

Sales are now falling sharply because technology hasn’t been updated for many years.

We have vapcell 26650 4200 MAH 32A and mnke 3500 mah.

shadockan
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vapcell Dennis wrote:
shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

The truth is that I do not remember where I read it …..
Unfortunately …..
I think I had read it here, but I’m not sure.

On a personal level, I would like it to be untrue … and MNKE will continue to be on the market ……

Ok, Thanks。 I have news here that mnke batteries are made in Jiangsu, not in Guangdong.

Sales are now falling sharply because technology hasn’t been updated for many years.

We have vapcell 26650 4200 MAH 32A and mnke 3500 mah.

I’m glad I learned this, Dennis .
It was the only company that had good batteries in the market a few years ago in size 26650.

One of the good companies in my opinion and it would be bad to withdraw from the market.

The last battery I had from this company was 4000mAh.
Many years before ……

I personally do not deal with this size, but it is good to have good choices in the market.
The latest 26650 batteries I came into contact with were the YDL 4200mAh (Aspire / Ijoy), the Basen 4500mAh (I do not know the manufacturer) and the PLB 5000 (Liitokala 5000A).

I can say it was good as a performance, but for the size of these batteries I personally think it’s still far behind the 18650 ….. and of course well below the 21700 …

Today I think this size does not have a future, because of 21700.
We already have 5000mAh with 10 – 15A and size 21700 is …. baby …

- The 21700 will surely surpass 26650 if the 26650 build continues with today’s data ….

vapcell Dennis
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shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

The truth is that I do not remember where I read it …..
Unfortunately …..
I think I had read it here, but I’m not sure.

On a personal level, I would like it to be untrue … and MNKE will continue to be on the market ……

Ok, Thanks。 I have news here that mnke batteries are made in Jiangsu, not in Guangdong.

Sales are now falling sharply because technology hasn’t been updated for many years.

We have vapcell 26650 4200 MAH 32A and mnke 3500 mah.

I’m glad I learned this, Dennis .
It was the only company that had good batteries in the market a few years ago in size 26650.

One of the good companies in my opinion and it would be bad to withdraw from the market.

The last battery I had from this company was 4000mAh.
Many years before ……

I personally do not deal with this size, but it is good to have good choices in the market.
The latest 26650 batteries I came into contact with were the YDL 4200mAh (Aspire / Ijoy), the Basen 4500mAh (I do not know the manufacturer) and the PLB 5000 (Liitokala 5000A).

I can say it was good as a performance, but for the size of these batteries I personally think it’s still far behind the 18650 ….. and of course well below the 21700 …

Today I think this size does not have a future, because of 21700.
We already have 5000mAh with 10 – 15A and size 21700 is …. baby …

- The 21700 will surely surpass 26650 if the 26650 build continues with today’s data ….

You are right,21700 battery is amzing. we also have those 26650 batteries except 26650 4500mah

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vapcell Dennis wrote:
shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
vapcell Dennis wrote:
shadockan wrote:
klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

You may have never met them, but we have known them for years.
The E-One Moli is one of the leading companies in the Li-Ion battery.
I once read somewhere that it is one of N.A.S.A’s suppliers.
In general, the quality of Moli is equivalent to well-known companies
Panasonic (Sanyo)
Murata (Sony Energy)
Samsung SDI (SDIEM)
LG Chem.

If I remember well those who built the MNKE, they were E-One Moli employees and their batteries wanted to be of comparable performance and quality.
Now MNKE belongs to IMREN …… and of course ….. was lost ….

So do not worry about Moli …
They are similar to the batteries of major manufacturers.

Now MNKE belongs to IMREN …… and of course ….. was lost ….

Where did you get the information? I’m curious Shocked

The truth is that I do not remember where I read it …..
Unfortunately …..
I think I had read it here, but I’m not sure.

On a personal level, I would like it to be untrue … and MNKE will continue to be on the market ……

Ok, Thanks。 I have news here that mnke batteries are made in Jiangsu, not in Guangdong.

Sales are now falling sharply because technology hasn’t been updated for many years.

We have vapcell 26650 4200 MAH 32A and mnke 3500 mah.

I’m glad I learned this, Dennis .
It was the only company that had good batteries in the market a few years ago in size 26650.

One of the good companies in my opinion and it would be bad to withdraw from the market.

The last battery I had from this company was 4000mAh.
Many years before ……

I personally do not deal with this size, but it is good to have good choices in the market.
The latest 26650 batteries I came into contact with were the YDL 4200mAh (Aspire / Ijoy), the Basen 4500mAh (I do not know the manufacturer) and the PLB 5000 (Liitokala 5000A).

I can say it was good as a performance, but for the size of these batteries I personally think it’s still far behind the 18650 ….. and of course well below the 21700 …

Today I think this size does not have a future, because of 21700.
We already have 5000mAh with 10 – 15A and size 21700 is …. baby …

- The 21700 will surely surpass 26650 if the 26650 build continues with today’s data ….

You are right,21700 battery is amzing. we also have those 26650 batteries except 26650 4500mah

Yes but only the specific format “26700” reaches to reach 40 continuous amps, when I say that I think about Molicel cells “IBR-26700A” (2800mAh Typical Capacaty and Max Continuous Discharge of 40A) and “IMR-26700A” (2900mAh Typical Capacity and Max Continuous Discharge of 40A), I know for cells of diameter 26mm their respective capacities are rather weak, but it was the sacrifice necessary at the time of their designs to obtain a continuous maximum discharge of 40 Amperes. There is no secret in it, you can not have both an extremely high capacity and a maximum continuous discharge extremely high too, you must choose one or the other, or create a balance / compromise between these two main features Wink

Moreover, for the record, the two models of Molicel cells mentioned above were the first to be used concretely in various cars or electric racing vehicles at the start, as well as the first Formula “E” versions, I think that their maximum continuous discharges 40 Amps played a lot in favor of their primary and major uses in these racing cars, hehe … Let’s hope that the 20700 and 21700 formats far exceed their records of pure power and time on the racing circuits used!

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THANK YOU, you have done a great job.

I saw all the tests and very impressed.

Moses came from the mountaintop carrying a tablet. The Words were....WITH GREAT LUMENS COMES GREAT REPONSIBILITY.

lawallac
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klrman wrote:

Never heard of Molicel before.  Wonder if they go through the rigorous testing of samsung batteries before coming on the market. They also cost a few dollars more and since Liion sells them, not worth their shipping cost to Canada.

Unfortunate because it appears their headquarters and manufacturing is done in Maple Ridge BC, as well as in Taiwan.

shadockan
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HydrAxx ….

I did not know that there is
IBR 26700 A.
I only knew about
IMR 26700 A

Thanks .

HydrAxx
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shadockan wrote:
HydrAxx ….

I did not know that there is
IBR 26700 A.
I only knew about
IMR 26700 A

Thanks .

You’re welcome.

If you want to test the Molicel IBR26700A, there are still in stock on the site that I will give you (German site, but they deliver everywhere in Europe) but they are a bit expensive you’ll see, but it’s the only place where they are still available to my knowledge.

https://shop.lipopower.de/LiIon-Rundzelle-Molicel-IBR26700A-37V-2800mAh

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shadockan
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Thanks HydrAxx .
Thank you very much my friend ….

andygold
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I posted this elsewhere, but received no answers...

 

I'm looking for a  21700 battery for an Astrolux EC01 (single cell flashlight, XHP50.2) which is rated at 3500 lumens on turbo.  I believe it draws 14.8 amps on turbo.  I'm looking at this particular cell for it, but then I read something about FET+1 drivers, and something about I think it was voltage sag, which leads to believe that I might be better off with a battery that's rated for LESS continuous high-drain amperage...possibly a 20A instead of this 45A Molicel.  Again, I know little about high drain batteries and even less about drivers, and what I've read confuses me.

 

I'm looking to get both max lumens and max runtime on turbo, but also want to have max runtime once the battery can no longer sustain the turbo mode.  What I read lead to believe that lower continuous amperage batteries would still give full lumens on turbo, but for a shorter time due to inefficient heat, and consequently thermal stepdown...and then since I used less juice for turbo, I'd have more left for high, medium and low...  Is this correct, or am I totally lost????  Smile

Would I want the 45A Molicel shown here, or would I be better served by having a battery that puts out less continuous amperage, like maybe a 20A variety?

 

Thanks in advance.

Surefire 8X, Lummi Wee, Lummi Raw, Tank007 E09, On The Road M3, Nitecore Tube, Nitecore TINI, Utorch UT01 (cool and neutral), 9V Cube Light, various 3xAAA COB lights, Eternalight, Jetbeam SF-R26, Astrolux EC01

JasonWW
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andygold wrote:

I posted this elsewhere, but received no answers…


 


I’m looking for a  21700 battery for an Astrolux EC01 (single cell flashlight, XHP50.2) which is rated at 3500 lumens on turbo.  I believe it draws 14.8 amps on turbo.  I’m looking at this particular cell for it, but then I read something about FET+1 drivers, and something about I think it was voltage sag, which leads to believe that I might be better off with a battery that’s rated for LESS continuous high-drain amperage…possibly a 20A instead of this 45A Molicel.  Again, I know little about high drain batteries and even less about drivers, and what I’ve read confuses me.


 


I’m looking to get both max lumens and max runtime on turbo, but also want to have max runtime once the battery can no longer sustain the turbo mode.  What I read lead to believe that lower continuous amperage batteries would still give full lumens on turbo, but for a shorter time due to inefficient heat, and consequently thermal stepdown…and then since I used less juice for turbo, I’d have more left for high, medium and low…  Is this correct, or am I totally lost????  Smile


Would I want the 45A Molicel shown here, or would I be better served by having a battery that puts out less continuous amperage, like maybe a 20A variety?


 


Thanks in advance.


First of all, you cant have both max lumens and max runtime on turbo. The more lumens, the more heat. The faster the flashlight heats up, the sooner it needs to adjust down from Turbo to not burn you.

Second, why do you want max lumens? You think you do, but you really don’t. If you look at a light putting out 3000 lumens and then one putting out 3500 you would not see the difference with your eyes. You would only be able to measure the brightness difference with equipment.

I think you would be better served with a medium to high capacity battery and not a high drain. This Molicel P42A would be fine as well as a Samsung 40T or 50E. The 50E (5000mah) will give slightly less max output, but run Turbo longer and run all lower levels longer.

BTW, a FET driver is also called a direct drive driver. It’s like connecting a wire directly from the battery to the led on Turbo. So the battery as well as various resistance in the circuit will effect the brightness. The amperage draw will vary. Manufacturers have to use certain leds with FET drivers to make sure that they won’t get burned up by high powered batteries. It is a tricky balance. They can limit current by the components they use.

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Agro
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JasonWW wrote:
Second, why do you want max lumens? You think you do, but you really don’t. If you look at a light putting out 3000 lumens and then one putting out 3500 you would not see the difference with your eyes. You would only be able to measure the brightness difference with equipment.

But you will still see marginally more with the brighter light.
I agree that small output differences have marginal effect in practice. But non 0. And as myself I don’t care much about Turbo times (5 seconds does it for me) I tend to prefer powerful cells.

andygold wrote:

I posted this elsewhere, but received no answers…


 


I’m looking for a  21700 battery for an Astrolux EC01 (single cell flashlight, XHP50.2) which is rated at 3500 lumens on turbo.  I believe it draws 14.8 amps on turbo.  I’m looking at this particular cell for it, but then I read something about FET+1 drivers, and something about I think it was voltage sag, which leads to believe that I might be better off with a battery that’s rated for LESS continuous high-drain amperage…possibly a 20A instead of this 45A Molicel.  Again, I know little about high drain batteries and even less about drivers, and what I’ve read confuses me.


 


I’m looking to get both max lumens and max runtime on turbo, but also want to have max runtime once the battery can no longer sustain the turbo mode.  What I read lead to believe that lower continuous amperage batteries would still give full lumens on turbo, but for a shorter time due to inefficient heat, and consequently thermal stepdown…and then since I used less juice for turbo, I’d have more left for high, medium and low…  Is this correct, or am I totally lost????  Smile


Would I want the 45A Molicel shown here, or would I be better served by having a battery that puts out less continuous amperage, like maybe a 20A variety?


 


Thanks in advance.


More powerful batteries give higher output in a properly built FET light like EC01. The higher output comes with both higher power consumption (which means lower runtime) and lower efficiency (which is not lower enough to cause the output to be the same).

As JasonWW indicated, the output differences don’t tend to make a huge difference in real life. I suggest using some fairly high capacity cell.
Molicel P42 (on the powerful side), Panasonic NCR21700A (on the high efficient side) would be the high end options. There are some Lishen cells that would be more budget-friendly and still good choices.

SKV89
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If you can find the good batch (orange original wraps) of Lishen LR2170SF, they are the best high capacity cells. They make a good amount more lumens than the LG M50 and Samsung 50E in the E07 but only about 250 lumens less.

andygold
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 Thank you guys for the prompt replies.  Truly appreciated!

 

The thing is, I'm purchasing 4 of these lights for other flashaholics (but with no experience with high-drain cells) and they are going to be used somewhat as "WOW" lights.  They need to be able to burn paper (which they are capable of as videos show), so the brighter or hotter the Turbo is, the better.

I'm trying to better understand this Molicel battery and its number specs compared to others.

I realize that the chemistry of the cell is hugely important in all things, but disregarding chemistry...Hypothetical situation here...imagine three batteries identical in all things (same mAh rating) except for max continuous amperage ratings.  This battery has 45A continuous, while the other two are rated at 20A  and 10A max continuous.  With this particular Astrolux light which can draw 14.8A on turbo, can I assume that:

1) 45A and 20A will provide the similar max turbo brightness due to them both providing a continuous amperage above 14.8A?

2) 45A and 20A will have similar runtimes on turbo and lower modes?  Does voltage sag come into this or the question above?

3) 10A continuous will not be able to reach the same turbo brightness due to it NOT being able to provide at least 14.8A? But will be similar to the others in regards to brightness and runtimes on lower modes?

4) Will 10A cause the light to thermal stepdown quicker than the others due to battery being stressed while driven at max turbo, or maxing the cell out, or some other reason?  Or will 45A and 20A cause thermal stepdown quicker due to the emitter reaching the brighter output, and consequently more heat?  I've seemed to read it going both ways...

5) Astrolux specifies that an unprotected, high-drain cell be used.  I'm assuming that's because "unprotected" and "high-drain" go somewhat hand in hand, and to reach 3500 lumens a typical high-drain battery would also typically be unprotected.  With that said, I found an Acebeam IMR battery that states it's Protected, High-Drain, 20A continuous discharge, and 5100 mAh.  If it were to physically fit in the tube, why wouldn't I want to use that?  Yes, it's protected, but it still says it can deliver 20A continuous.

 

Again, just trying to get an education numbers-wise, when comparing high-drain batteries in a light that calls for them.

 

Thank,

Andy

Surefire 8X, Lummi Wee, Lummi Raw, Tank007 E09, On The Road M3, Nitecore Tube, Nitecore TINI, Utorch UT01 (cool and neutral), 9V Cube Light, various 3xAAA COB lights, Eternalight, Jetbeam SF-R26, Astrolux EC01

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