Test/Review of Keeppower IMR18650 3200mAh (Black) 2014

Batteries and Chargers Rechargeable Batteries
1

Keeppower IMR18650 3200mAh (Black) 2014



Official specifications:

  • Nominal voltage: 3.6V
  • Nominal capacity: 3200mAh
  • Min capacity: 3100mAh
  • Max discharge current: 20A




This is a high current battery with very high capacity.










Running this battery at 20A is a bit high, but it does 10A fine and with nearly full capacity.















Conclusion

High current cells has increased significantly in capacity during the last year and this cell is the highest capacity I have seen to date. I cannot match some of the ultra high current cells, but it does very good at 10A (I believe that Keeppower has been a bit optimistic in their marking of the cell).

I will call it a good cell.



Notes and links

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
Compare to 18650 and other batteries

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It looks like NCR18650BE and it performs better than NCR18650B, NCR18650BD, NCR18650PF.

3

Looks like Panasonic NCR18650BD

4

This is 18650BD right?

A bit better then PF, but yet not sure if the cost of + 10$ is justified….price/performance is not very good on most online stores. Thank you for one more fantastic review!

HKJ, can you tell me what does the second blue line means?

http://lygte-info.dk/review/batteries2012/Common18650comparator.php

5

You get the lines for both cells I have tested, here there is some difference between the cells.

6

It can’t be the NCR18650BE. That cell has a maximum continuous discharge of 3.636A. Since it appears to be good to 10A, it has to be the NCR18650BD (gray wrapper).

7

Have you seen the official specsheet or are you going off by what some random seller or forum posted? Just becomes panasonic rates it at one thing doesn’t mean keeppower can’t rate it for more.

Have you seen any review confirming that NCR18650BE cannot handle higher current? The NCR18650BD positive terminal does not match this keeppower like the NCR18650BE.

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18650BE are not high drain, they are lower rated then NCR18650B, which are like 5-6A cellss (max)

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Thanks

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What review have you seen that makes that claim? Here is the NCR18650BE performing very well at 5A continuous discharge:

via: http://ekurilka.com.ua/showthread.php/4877~~Колхоз~~на-Efest-Purple-(Третий~~Виток~~Скидываемся)/page74

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Another thing. Isn’t the BE simply an ICR cell? This Keeppower is specifically listed as an IMR. And although the BD is actually a hybrid rather than a true IMR, hybrids are often sold as IMRs.

12

A mystery cell.
What can it be. ??
Who knows what it is ? Anyone ?

Thanks, because I am on a phone.

Can anyone match this graph to a Panasonic graph ?

Can anyone link the Panasonic Specs
such as ( 20A ). ?
and what panasonic model number is this. ?

– is there a protection circuit ??
It says IMR on the label.
Is this IMR, or not IMR ?
If this is a hybrid, what is the correct way to say so ?
Is a hybrid really an IMR. ?

I guess I will see how many IMR batteries
that Panasonic makes.
I guess if you think about it,
IMR could mean anything.

13

i don’t know what that stuff means.
as long as it says made in japan somewhere on there,
i know it’s a good battery
if y’all would not keep testing all these batteries,
we would not be getting so many complaints about them

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Do reviewers ever unwrap batteries? Shouldn’t this be a relatively easy question to answer?

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If batteries aren't double wrapped, you probably may not find any useful information on the bare steel shell. Or maybe you can. What does this mean?

F6B3

F6B3

I78B

5BSA1

16

I guess we will never find out the truth about this battery.
Has it been proven there’s a Panasonic inside ??

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LOL are you kidding me? ofc its Panasonic.

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As you can see in the review I specify it contains a Panasonic cell.

This is because Keeppower has told me that it is a Panasonic cell and I do believe them.

I have not seen a manufacturer lying about the cell yet, they may hold information back, but they do not lie.

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Thank you I now trust it is a panny and a good battery , of course.
Does it’s graph match the graph of an IMR battery ?

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Try checking out HKJ's website in his signature to compare graphs yourself. I think you'll be very pleased.