These tests below only note my personal opinion for the ESTIMATED ratings for the batteries I tested at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, or Sanyo can change at any time! This can be one of the hazards of using “rewrapped” or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of property damage, personal injury, or even death. Never use them outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.

Testing batteries at their limits is dangerous and should never be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.

If the battery has only one current rating number, or if it only says "max", then I have to assume the battery is rated at that current level for any type of discharge, including continuous.




Test Results
Finally, a better 18350!
For several years all we’ve had is the oft-rewrapped YDL cell or another similar performing one (I don’t know from where) used in the Keeppower UH1835P and others. I don’t know what cell this is but Vapcell was right, it’s a much better performer than those cells.

This V2.0 M11 cell easily met its capacity rating (1198mAh and 1211mAh), runs for about 75% longer at 5A than the other 18350’s (yes, 75% longer), and seems to easily handle its 10A rating. I don’t know what its cycle life is compared to the other 18350’s but the V2.0 M11 is the best performing high current rated 18350 you can buy now IMO.

Be sure to get the gold-colored V2.0 M11 and not the purple-colored original M11.

There are higher capacity 18350’s, like Vapcell’s 1400mAh F14 and 1600mAh F16, but they are both rated at 3A. I hope to test the F16 but they’re not yet available in the US and shipping from AliExpress is nine weeks.


Continuous Current Discharge Graphs



Ratings and Performance Specs Graphic



18650 Ratings and E-Scores Table:


20700/21700 Ratings and E-Scores Table:

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To see how other cells have tested check out this link: Links To All 21700, 26650, 18350, 18500 Battery Tests