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Hibatt Orange 35A 2500mAh 18650 Bench Test Results...only a 20A battery, probably a 25R

Discussion in 'Batteries and Chargers' started by Mooch, Mar 28, 2016.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    These cells were donated for the purposes of testing by FatDaddy (Fat Daddy Vapes). Thank you! To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18650, 26650, etc.


    Disclaimer
    The statements, conclusions, and recommendations I make based on these tests are only my personal opinion. Carefully research any battery you are considering using before purchasing.

    Testing cells at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them.


    A note regarding current ratings and my testing
    If the cell has only one current rating number on it, or if it says "max discharging current" then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.

    image.jpeg image.jpeg image.jpeg image.jpeg


    Bottom Line
    This is a wildly overrated 20A continuous, 2500mAh battery. Discharging at only 30A continuous got it hot enough to boil water and at 35A continuous it was damaged by the heat after only one discharge. It appears to be a Samsung 25R. It can be pulsed at up to about 50A before its voltage gets uselessly low.


    Continuous-Current Test Results
    image.png


    Pulsed-Current Test Results
    These tests are done to show the performance of the cell at higher pulsed current levels. If you are running your mod at these levels be aware that you risk overheating, and possibly venting, the battery if there is a malfunction or accidental pressing of your mechanical mod's button.
    image.png image.png


    Comments
    • At 10A continuous it reached about 2500mAh. This is good performance for a 2500mAh-rated cell operating at 10A so I am rating this cell at 2500mAh.
    • At 15A continuous the temperature rose to 67°C. This is below the average temperature for a cell operating at its continuous discharge rating (CDR).
    • At 20A continuous the temperature rose to 78°C. This is the average temperature for a cell operating at its CDR, indicating that we're discharging at near the cell's CDR.
    • At 25A continuous the temperature rose to 92°C. This is way above the average temperature for a cell operating at its CDR, indicating that we're discharging at above the cell's rating.
    • At 30A continuous the temperature rose to 104°C. This is incredibly hot and exceeds my 100°C safety limit
    • At 35A continuous the temperature rose to 114°C. To call this a 35A battery is beyond crazy.
    • One additional discharge at 35A shows clearly that the cell was damaged by the previous 35A discharge.
    • I am setting a CDR of 20A for this cell since at this current level the operating temperature is at the average for a cell operating at its CDR. While operating any cell near its rated maximum current level causes damage to the cell, I would expect good cycle life from this cell at 20A continuous.
    • I have included pulsed discharges but I haven't set pass/fail standards for pulse testing yet. The discharges were done at 5sec on/30sec off, down to 2.5V. One chart shows the entire discharge at each level. The other chart is zoomed in to show the first 5 minutes to make it easier to see the voltage sag at different current levels.
    To see how other cells have tested and how hard you can safely push them, check out these links:
    List of Battery Tests | E-Cigarette Forum
    18350 Safety Grades and Pulse Performance Data | E-Cigarette Forum
    18650 Battery Ratings -- Picking a Safe Battery to Vape With | E-Cigarette Forum
    26650 Safety Grades and Pulse Performance Data | E-Cigarette Forum
     
    • Like Like x 2
  2. sonicbomb

    sonicbomb Vaping Master Verified Member ECF Veteran

    Feb 17, 2015
    1187 Hunterwasser
    Another sucker hits the mucker. Out of interest, what was the price point compared to a 25R?
     
  3. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    I don't know, they were donated. :)
     
    • Like Like x 1
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