Test/Review of Sanyo 18650 2600mAh (Red)

HKJ

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[size=+3]Sanyo 18650 2600mAh (Red)[/size]

DSC_0034.jpg


Official specifications:
  • Sanyo brand you can trust
  • Rechargebale 18650 battery
  • Extra big area flat conduction system design
  • Unprotected

Sanyo%2018650%202600mAh%20(Red)-info.png


This is an unprotected cell, it is also used in many 2600mAh protected batteries with a added protection circuit.

DSC_0033.jpg


DSC_0035.jpg
DSC_0036.jpg


DSC_0037.jpg

DSC_0038.jpg


Sanyo%2018650%202600mAh%20(Red)-Capacity.png


Comparing it to protected version, the largest difference is output voltage with 5A load, without protection the voltage is slightly higher. For actual values use my comparator.

Sanyo%2018650%202600mAh%20(Red)-CapacityTimeHours.png


Sanyo%2018650%202600mAh%20(Red)-CapacityTime.png


Sanyo%2018650%202600mAh%20(Red)-Energy.png


Sanyo%2018650%202600mAh%20(Red)-PowerLoadTime.png


Sanyo%2018650%202600mAh%20(Red)-TripCurrent.png


Sanyo%2018650%202600mAh%20(Red)-Charge.png


There is two set of curves in the above chart and they do track very well.


[size=+3]Conclusion[/size]

There is not much to say about this cell, it is a very good cell, just remember that it is unprotected.



[size=+3]Notes and links[/size]

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
 

candle lamp

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Another excellent test review as always. HKJ! :thumbsup:

Thank you.

The cells show very nice performance.
 

bestsystem

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Sep 28, 2011
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how fresh are your sanyo cells?

I got a pair of sanyo 2600mah produced in jan 2012:poof:

btw, are they li-co or advanced chemistry?
 

HKJ

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HKJ what's the date code on the label? (eg. P11C or similar)


There it not any obvious print on the cells, as can be seen on the pictures.
In the red plastic there is some engraved tiny letters: "SANYO L" and "UR18650FM R1122"
Under the red wrapper, there is some print directly on the cell: "PJKM4PE" and "135836"

Note: The text is very difficult to read, i.e. I might have a letter or number wrong.
 

gopajti

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Yes difficult to read, these letters is ok, but the date code is a four, letter/number code, here is my Sanyo battery

can you check again? pls

303fh2w.jpg
 
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gopajti

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qualitychinagoods has got fresh Sanyo UR18650FM cells, I asked, and they say the date code is Q31G (2012, August!)
 
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vestureofblood

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HI HKJ,

I was reading your charts that compare all of the 18650 cells with one another. I am a little confused about some of the labeling in the charts thought.

The chard shows this cell which performed well "sanyo 2600mah Red" Then right below it another cell that says "sanyo 2600mah Red BV" that perfomed only half as well under a 5 amp load.

What is the difference? Whats BV?

I am also not clear on what many of the other letters after the cell description are, like

SB, LB??? I can guess at a few like FT is flat top? BT is button top?

Thanks again for all your work on these.
 

walterwitt

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Feb 23, 2013
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HI HKJ,

I was reading your charts that compare all of the 18650 cells with one another. I am a little confused about some of the labeling in the charts thought.

The chard shows this cell which performed well "sanyo 2600mah Red" Then right below it another cell that says "sanyo 2600mah Red BV" that perfomed only half as well under a 5 amp load.

What is the difference? Whats BV?

I am also not clear on what many of the other letters after the cell description are, like

SB, LB??? I can guess at a few like FT is flat top? BT is button top?

Thanks again for all your work on these.
Looks like it's the protected version http://lygte-info.dk/review/batteries2012/Sanyo%2018650%202600mAh%20(Red)%20bv%20UK.html
 

HKJ

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Joined
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Messages
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I was reading your charts that compare all of the 18650 cells with one another. I am a little confused about some of the labeling in the charts thought.

The chard shows this cell which performed well "sanyo 2600mah Red" Then right below it another cell that says "sanyo 2600mah Red BV" that perfomed only half as well under a 5 amp load.

What is the difference?

Protected or unprotected.


Whats BV?

I can only have the same name once in my test, this means I have to add something to the name when testing more copies of the same battery.
Usual it is some letters from the dealers name, but if the batteries are from the same dealer I have to use something else like bt and ft (button/flat top).


I am also not clear on what many of the other letters after the cell description are, like

SB, LB??? I can guess at a few like FT is flat top? BT is button top?

The battery top exist in 3 styles: Small diameter Button top, Large diameter Button top, and flat.
In the links at the bottom of each review you can find more information
 
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