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 to help lower the risks and extend cell life, 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 is the best performing (longest running) 21700 I have tested at both 5A and 10A, even beating the Vapcell F56/F60.
This cell uses Samsung’s new style of model number (CC5493F101, Ver A, for these cells). But “55E” is on the metal can, near the top. In bright light you can see this through the wrap.
The cells I tested were sourced from nkon.nl, incorrectly listed as “58E”. I’m not sure why as you can clearly see “55E” through the wrap.
The 58E exists but its model number is CC5733F101 and you can see “58E” through the wrap near the top. I hope to get some soon for testing.
Some 55E specs:
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650 Ratings & Performance Table:
www.e-cigarette-forum.com
20700/21700 Ratings & Performance Table:
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.
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 to help lower the risks and extend cell life, 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 is the best performing (longest running) 21700 I have tested at both 5A and 10A, even beating the Vapcell F56/F60.
This cell uses Samsung’s new style of model number (CC5493F101, Ver A, for these cells). But “55E” is on the metal can, near the top. In bright light you can see this through the wrap.
The cells I tested were sourced from nkon.nl, incorrectly listed as “58E”. I’m not sure why as you can clearly see “55E” through the wrap.
The 58E exists but its model number is CC5733F101 and you can see “58E” through the wrap near the top. I hope to get some soon for testing.
Some 55E specs:
- 5330mAh minimum, 5490mAh typical capacity.
- Its 10.6A continuous current rating seems fair.
- It has a 16A temp-limited current rating, stay under 70°C!
- This is not a power cell! You cannot run it at above 15A or so and expect any kind of decent run time. There will be too much voltage sag. Best is under 10A or so (pulsed or continuous).
- Standard charge rate is 2.6A, max is 5.3A but Samsung says that will shorten cycle life.
- This is a large cell, datasheet spec is 21.78mm dia., 71.0mm long. But the largest cell I had was 21.50mm dia., 71.40mm long…fat and long!
- DC IR for the two cells I tested measured 15.5mOhms and 15.6mOhms. This is extraordinary consistency.
- Capacities for the two cells was 5589mAh and 5599mAh, fantastic consistency.
- This IR and capacity consistency helps when assembling battery packs. The self-discharge rate consistency is also important when sorting cells for battery packs but I have not tested that for these cells.
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650 Ratings & Performance 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 & Performance 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.
