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, EVE, Lishen, BAK, 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
This cell is a great performer at very low power levels but it’s an example of the compromises that sometimes must be made. It has extremely high capacity but to prevent huge voltage sag I recommend not running this cell at over its 3A (about 9W) rating. It performs best down near 1A (about 3W).
Its DC internal resistance is incredibly high, about 95mOhms. At 1A you’re only getting about 1350mAh down to 3V. At 3A you’re only getting about 1150mAh.
At 5A the Gold Vapcell V2 M11 18350, rated 1100mAh, runs for about 35% longer than this cell. You will not get longer run time from this cell if you are above 3A (9W) or so.
Temperatures at 3A were relatively low so hopefully this cell has good cycle life but I have not tested that. Two cells delivered 1642mAh and 1659mAh which is good consistency for an 18350.
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650 Ratings and E-Scores Table:
20700/21700 Ratings and E-Scores Table:
I want to work for the community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Get more from Battery Mooch on Patreon.
To see how other cells have tested check out this link: Links To All 21700, 26650, 18350, 18500 Battery Tests
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
This cell is a great performer at very low power levels but it’s an example of the compromises that sometimes must be made. It has extremely high capacity but to prevent huge voltage sag I recommend not running this cell at over its 3A (about 9W) rating. It performs best down near 1A (about 3W).
Its DC internal resistance is incredibly high, about 95mOhms. At 1A you’re only getting about 1350mAh down to 3V. At 3A you’re only getting about 1150mAh.
At 5A the Gold Vapcell V2 M11 18350, rated 1100mAh, runs for about 35% longer than this cell. You will not get longer run time from this cell if you are above 3A (9W) or so.
Temperatures at 3A were relatively low so hopefully this cell has good cycle life but I have not tested that. Two cells delivered 1642mAh and 1659mAh which is good consistency for an 18350.
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650 Ratings and E-Scores Table:
18650 Battery Ratings and Performance Table
You are responsible for your own safety! These batteries are designed, manufactured, and sold only for use in a battery pack with the proper protection circuitry and battery management system. They were not designed for vaping (electronic...
www.e-cigarette-forum.com
20700/21700 Ratings and E-Scores Table:
21700 Battery Ratings and Performance Table
You are responsible for your own safety! These batteries are designed, manufactured, and sold only for use in a battery pack with the proper protection circuitry and battery management system. They were not designed for vaping (electronic...
www.e-cigarette-forum.com
I want to work for the community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Get more from Battery Mooch on Patreon.
To see how other cells have tested check out this link: Links To All 21700, 26650, 18350, 18500 Battery Tests
