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.
Bottom Line
This is a great performing cell that will give you more vaping time than any other 26650 I’ve tested recently if you are at 20A/60W or lower. At power levels above this the 4200mAh-4300mAh cells based on the YDL 26650D are a better choice. This does NOT include the poor performing, and preposterously overrated, Efest 35A/50A 4200mAh 26650.
The capacity for the two Vapcells I tested was 5870mAh and 5879mAh at 1100mA (0.2C) down to 2.5V. This is fantastic consistency for a China manufactured cell and they easily exceeded their 5500mAh rating. I am rating these cells at at Vapcell’s rating of 5500mAh to prevent confusion but they are clearly higher capacity cells.
Two cells were purchased for testing by me.
Continuous Current Discharge Graphs
Ratings Graphic
Performance Specs
To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
***I have switched test jigs, resulting in slightly lower IR readings versus my previous setup. Add 1.6mOhms to this IR value in order to compare these cells to others tested previously.
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.




Bottom Line
This is a great performing cell that will give you more vaping time than any other 26650 I’ve tested recently if you are at 20A/60W or lower. At power levels above this the 4200mAh-4300mAh cells based on the YDL 26650D are a better choice. This does NOT include the poor performing, and preposterously overrated, Efest 35A/50A 4200mAh 26650.
The capacity for the two Vapcells I tested was 5870mAh and 5879mAh at 1100mA (0.2C) down to 2.5V. This is fantastic consistency for a China manufactured cell and they easily exceeded their 5500mAh rating. I am rating these cells at at Vapcell’s rating of 5500mAh to prevent confusion but they are clearly higher capacity cells.
Two cells were purchased for testing by me.
Continuous Current Discharge Graphs

Ratings Graphic

Performance Specs
- DC Internal Resistance = 19.7mOhms*** (milliohms) average for the two cells.
- Watt-hours (energy) delivered at 10A down to 3.2V = 16.4Wh
- Watt-hours (energy) delivered at 20A down to 3.2V = 10.5Wh
- 2-sec puff count at 30W = 984
- 2-sec puff count at 60W = 315
To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
***I have switched test jigs, resulting in slightly lower IR readings versus my previous setup. Add 1.6mOhms to this IR value in order to compare these cells to others tested previously.