These tests below only note my personal 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 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 property damage, personal injury, or even death. They are not supposed to be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
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 not a good performer but its 15A rating seems reasonable. The Samsung 30Q runs for about 40% longer at 15A.
This Imren 30QP is essentially identical in appearance to the Efest 30EF but the Efest performs a lot better (but still not as well as the Samsung 30Q). I do not know if they are different grades of the same cell or not.
The two cells I tested delivered 3049mAh and 3066mAh. This is very good consistency and exceeds this cell’s 3000mAh rating.
Two cells were purchased for testing by me from Liion Wholesale (Liion Wholesale Batteries | Li-ion battery/cell distributor).
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
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 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 property damage, personal injury, or even death. They are not supposed to be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
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 not a good performer but its 15A rating seems reasonable. The Samsung 30Q runs for about 40% longer at 15A.
This Imren 30QP is essentially identical in appearance to the Efest 30EF but the Efest performs a lot better (but still not as well as the Samsung 30Q). I do not know if they are different grades of the same cell or not.
The two cells I tested delivered 3049mAh and 3066mAh. This is very good consistency and exceeds this cell’s 3000mAh rating.
Two cells were purchased for testing by me from Liion Wholesale (Liion Wholesale Batteries | Li-ion battery/cell distributor).
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
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 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
