These tests below only note the ESTIMATED ratings for these batteries 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 is 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 personal injury or property damage. They are not meant to be used outside of a physically and electrically protected battery pack. Never exceed the battery’s current rating and keep the plastic wrap and top insulating ring in perfect condition. Use of any of these batteries is AT YOUR OWN RISK.
Testing batteries at their limits is dangerous and should never, ever, 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
I’ve been getting a lot more requests to test protected cells by high-resistance mech users (who can fit this longer cell) and flashlight users.
This cell is accurately rated and appears to be a Samsung 30Q with a protection circuit board on top. It is approximately 69.1mm long so it cannot be used in any device that only accepts standard length 18650’s.
The capacity of the two cells I tested was 3043mAh and 3064mAh, agreeing with Vapcell’s 3000mAh rating.
At 15A the discharge was able to be completed down to 2.8V. At 20A the protection circuit stopped the discharge after about 5 minutes at around 2.9V. At 25A it stopped the discharge after about 20 seconds at about 3.15V. The cell did not go above my 80°C limit.
The low voltage protection stopped a 5A discharge at 2.41V. At 15A the discharge was stopped at 2.34V. After the discharge stopped the cell’s voltage bounced back up over 2.5V so the 30Q’s low voltage limit of 2.5V was not exceeded.
At 15A the voltage drop caused by the protection circuit really affected the run time of this cell. A Samsung 30Q delivers about 6.1Wh at 15A down to 3.2V. This Vapcell only delivered about 4.0Wh, about a 33% loss of run time. I recommend staying below 10A to help reduce the voltage sag some.
So it’s a good protected cell in my opinion but only at lower current levels. There is ALWAYS a tradeoff when it comes to batteries!
Two cells were donated for the purposes of testing by Vapcell (Vapcell batteries, chargers, vape batteries). Thank you!
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
I want to work for the vaping 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 and charger testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Battery Mooch is creating battery and device tests | Patreon.
To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a physically and electrically protected battery pack. Never exceed the battery’s current rating and keep the plastic wrap and top insulating ring in perfect condition. Use of any of these batteries is AT YOUR OWN RISK.
Testing batteries at their limits is dangerous and should never, ever, 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
I’ve been getting a lot more requests to test protected cells by high-resistance mech users (who can fit this longer cell) and flashlight users.
This cell is accurately rated and appears to be a Samsung 30Q with a protection circuit board on top. It is approximately 69.1mm long so it cannot be used in any device that only accepts standard length 18650’s.
The capacity of the two cells I tested was 3043mAh and 3064mAh, agreeing with Vapcell’s 3000mAh rating.
At 15A the discharge was able to be completed down to 2.8V. At 20A the protection circuit stopped the discharge after about 5 minutes at around 2.9V. At 25A it stopped the discharge after about 20 seconds at about 3.15V. The cell did not go above my 80°C limit.
The low voltage protection stopped a 5A discharge at 2.41V. At 15A the discharge was stopped at 2.34V. After the discharge stopped the cell’s voltage bounced back up over 2.5V so the 30Q’s low voltage limit of 2.5V was not exceeded.
At 15A the voltage drop caused by the protection circuit really affected the run time of this cell. A Samsung 30Q delivers about 6.1Wh at 15A down to 3.2V. This Vapcell only delivered about 4.0Wh, about a 33% loss of run time. I recommend staying below 10A to help reduce the voltage sag some.
So it’s a good protected cell in my opinion but only at lower current levels. There is ALWAYS a tradeoff when it comes to batteries!
Two cells were donated for the purposes of testing by Vapcell (Vapcell batteries, chargers, vape batteries). Thank you!
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
I want to work for the vaping 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 and charger testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Battery Mooch is creating battery and device tests | Patreon.
To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
