Bench Test Results: LG M32 18650

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  • May 13, 2015
      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 should never be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.

      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.

      5874CDFF-EAD9-43D6-98BA-E86894E60634.jpeg 98E60082-A61B-4340-91B1-CAB710DE7CAE.jpeg AEBFC6C4-4570-4172-8354-600C9ED35185.jpeg AEC294BA-D511-4498-8821-A2CAD99D4E7A.jpeg

      Test Results
      This cell is a good performer, a little worse than the LG MJ1 at 5A but a little better at 10A. It performed the same to a tiny bit better than the Panasonic NCR18650GA.

      I couldn’t find a datasheet but it seems to be rated about 10A. Vapcell mentioned in a post that this might be the LG MJ1 replacement. I cannot confirm this though.

      Without a datasheet to tell me their max temperature specification I recommend staying under 7A continuous and 10A if you do not let them get hotter than 60°C. Like all of the over-3000mAh 18650’s it performs best at about 1/2 its current rating or lower.

      The two cells I have tested out at 3069mAh and 3090mAh. I cannot have the lowest capacity cells in the batch so I will be rating them at 3000mAh.

      I have not tested their cycle life. Check my 18650 Ratings and E-Scores table (link below) to see how well this cell performed against others.

      Two cells were purchased for testing by me.

      18650 Ratings and E-Scores Table:

      20700/21700 Ratings and E-Scores Table:

      Continuous Current Discharge Graphs

      Ratings and Performance Specs Graphic

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      To see how other cells have tested check out this link:
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