The two cells tested were contributed by The Vapor Emporium (Vaping Accessories, Kits, Liquids & Batteries - New Market, Maryland) for examination. Thank you! To avoid any confusion with the eGo-type batteries, I am employing the term "cell" in this context to denote a single 18350, 18650, 26650, etc.
Although the test results provide factual information, the deductions and suggestions I derive from these tests are solely my viewpoints based on my criteria for establishing a rating. Before purchasing, you must thoroughly investigate any cell you intend to use.
Conducting tests on cells at their maximum capacity is hazardous. It should never, under any circumstances, be attempted by individuals who have not extensively studied the associated hazards and ways to minimize them.
If the cell only displays one current rating figure or mentions "max discharging current," it implies that the company claims the cell can be discharged at that specific current level in any manner, including continuous discharge.
Imren 2500mAh Key Takeaway
Composing this test report is genuinely gratifying. The Imren 18650 2500mAh is accurately evaluated and lacks the extra "pulse" or "max" rating displayed prominently on the packaging. It is a high-performing 20A 2500mAh cell with an appearance and performance comparable to the LG HE4. The 18650 ratings table has been updated to incorporate this particular cell.
Imren 2500mAh Remarks
At a continuous current of 10A, it achieved a capacity of 2416mAh. This represents outstanding performance for a 2500mAh cell operating at 10A like Imren 18650 3500mAh, so I am assigning it a rating of 2500mAh like the subohmcell 18650 2800mAh.
At a continuous current of 15A, the temperature rose to 67°C. This falls below the average temperature of a cell functioning at its constant discharge rating (CDR), indicating that we are operating below its genuine rating.
At a continuous current of 20A, the temperature rose to 79°C, which aligns with the average temperature of a cell operating at its CDR. This indicates that we are working at its genuine rating.
At a continuous current of 25A, the temperature rose to 90°C, exceeding the average temperature of a cell operating at its CDR. This suggests that we are operating above its actual rating.
At a continuous current of 30A, the temperature rose to 99°C, significantly surpassing the average temperature of a cell operating at its CDR. We are working well above its genuine rating, and the voltage drop is also substantial.
At continuous currents of 35A and 40A, the temperature rose to 107°C and 105°C, respectively. These values exceed my safety cutoff of 100°C and are well above the cell's genuine rating. The voltage drop at these current levels is substantial.
I am establishing a CDR of 20A for this battery cell. Although operating any cell near its maximum rated current causes damage, I anticipate a good cycle life from this cell at a continuous current of 20A. Also, remember to read my previous review about MXJO 18650 3500mAh.
