18650 Battery Safety Grades table

[Alex]

18650 Battery Safety Grades table self.electronic_cigarette

submitted 5 hours ago by Mooch315

I've been doing a bit of battery testing (including temperature) over at ECF, about 40 different 18650 batteries with more added each week. I've condensed the results of these tests down to a single table that gives each battery a Pass, Caution, or Fail safety grade based on its temperature at discharge current levels from 5A-40A (where possible). I've also added in the equivalent wattage and coil resistance values so it's easy to find the batteries that can safely handle them.

This table has made it a lot easier for me to answer the daily "What battery should I buy for my mod" or "Will this battery blow up?" or "What's the lowest build resistance that these batteries can handle" questions.

If you think it might be of any help, expecially to help sort through all the battery rating misinformation out there, here's the link:

https://www.e-cigarette-forum.com/f...safe-battery-to-vape-with.7447/#comment-13219[1]

A list of links to all the tests is here: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/[2]

For more information about my testing procedures and equipment: https://www.e-cigarette-forum.com/forum/blogs/mooch.256958/[3]


source: https://www.reddit.com/r/electronic_cigarette/comments/3jy964/18650_battery_safety_grades_table/

 

[Andre]

Looks like a great resource, @Alex. Have pasted the Table below.

 

[Silver]

Thanks @Alex and thanks @Andre for posting the chart

Interestingly, all the batteries will handle 0.39 ohms or higher
And almost all of them will handle 0.26 ohms or higher

 

[Franky]

Looks like a great resource, @Alex. Have pasted the Table below.

This should be a sticky

 

[Silver]

This should be a sticky

It is already @Franky
I think @Alex made it a sticky when he originally posted it

 

[ET]

Great resource this, thanks for finding it

 

[Willyza]

Thanks

 

[Andre]

Have posted the latest Table above. Seems they have added the purple Efest 2900 mAH, which have a real continuous discharge current of only 15A.

 

[Andre]

The latest Table below.

See the Tesiyi Yellow, which we speculated about some time ago, is now included at a CDR (continuous discharge rating) of 25A as opposed to the claimed CDR of 40A. Still a good rating for our purposes. Nothing actually beats it at that mAH (2600).

See the SubOhmCell is now available locally - Note the claimed CDR of 35A, but only verified as 15A.

 

[tesiyi]

The latest Table below.

See the Tesiyi Yellow, which we speculated about some time ago, is now included at a CDR (continuous discharge rating) of 25A as opposed to the claimed CDR of 40A. Still a good rating for our purposes. Nothing actually beats it at that mAH (2600).

See the SubOhmCell is now available locally - Note the claimed CDR of 35A, but only verified as 15A.

Hello, Andre, can you send the above picture to me? i need the clear one.

 

[Nightwalker]

Hello, Andre, can you send the above picture to me? i need the clear one.

Me to pls

 

[Smoke187]

Attached the PDF

 

[Andre]

Hello, Andre, can you send the above picture to me? i need the clear one.

Me to pls

Here it is in .pdf format.

 

[tesiyi]

Here it is in .pdf format.

Thank you very much.

 

[Mark121m]

This graph is a Vapers life.
Made my own spreadsheet with these spec integrated for when I build for my Tube Mech.

Love it

 

[Boktiet]

Thanks for this @Alex. I am soon venturing into the mech mod lands of milk and honey...

 

[Vinay]

Hi there Vape Community! I've found the latest table of battery ratings on facebook. Here's the link to the updated table. ( table that is attached is the old one) https://www.e-cigarette-forum.com/f...ngs-picking-a-safe-battery-to-vape-with.7447/

 

[antonherbst]

Latest 18650 battery chart from Mooch

 

[Silver]

@davedes
Tagging you here to check out the Mooch table in the above post
He is a battery expert and tests the continuous discharge rating of many batteries

Mooch reckons those Samsung 30Qs have a CDR of 20A

 

[antonherbst]

Latest battery chart

 

[ddk1979]

@Alex , the Samsung 35E : 3500mAh, wrap CDR = 8A, CDR = 8A

So, it would appear to be safe if I'm using a 1.2ohm coil at 22W (current = 4.28 / voltage = 5.13) ???
and I have the advantage of longer vape time ???

.

 

[Raindance]

@Alex , the Samsung 35E : 3500mAh, wrap CDR = 8A, CDR = 8A

So, it would appear to be safe if I'm using a 1.2ohm coil at 22W (current = 4.28 / voltage = 5.13) ???
and I have the advantage of longer vape time ???

.

That would be output from the PCBoard. What happens on the other end may be scary because those figures do not add up.

The additional volt is made up by pulling additional amps which explains 4.2V at 1.2Ohm = 3.5A but you need to include allowance for inefficiencies as well.

Problem is when you forget you have this battery in your mod and klap a 0.3 ohm coil on there. Poof!!!

Rather stay away from this battery.

Regards

 

[ddk1979]

POWER CHART

 

[antonherbst]

Latest specs on batteries

 

[antonherbst]

@Old_man_braam

Hier is die battery safety tabelle