LiionWholesale Samsung 50e Lithium-ion Cell Review
These reputable Samsung 50e cells are available at Samsung 50e. They’re 20 amp discharge, good capacity 21700 cells. Read on for testing!
LiionWholesale Samsung 50e Official Specs
- Manufacturer part number: INR21700-50E
- Size: 21700
- Approximate Diameter: 20.25mm
- Approximate Length: 70.8mm
- Brand: Samsung
- Manufacturer Rated Capacity: 5000mAh
- Manufacturer Rated Standard Discharge Capacity: 4900mAh
- Manufacturer Rated Max Continuous Discharge Current: 10A
- Manufacturer Rated Max Discharge Current (not continuous): 15A
- Nominal Voltage: 3.6V
- Peak Voltage: 4.2V
- Protected: NO, UNPROTECTED
- Style: Flat Top
- Color: Blue
- Origin: South Korea
And here is the official specification sheet from Samsung at LiionWholesale.com.
Price
You can buy the Samsung INR21700-50E at LiionWholesale. They’re $10.99 each at the time of this review, and volume discounts are available!
Short Review
These are good, high-capacity, low-drain 21700 cells.
Long Review
Package
These cells ship in individual cardboard boxes.
But they ship with a plastic 2-up carrying case.
The case is specific for 21700-sized cells and fits them perfectly.
Build Quality
Not a ton to say about the build quality of these cells, except that it’s exactly like it should be. The wrapper is perfectly centered and there are no bulges on the ends. Just right.
The wrapper is blue, and there’s a little white rim around the positive terminal.
The positive terminal is a 3-prong design.
Size
The width is 20.25mm, and the length is 70.8mm.
Much bigger than an 18650 (GA, seen below).
Testing
I’ve tried to keep the scales similar, so over time the charts will be generally comparable.
Discharge tests
Capacity
Energy
Bounce
This is a new section, and I added it just because I think it’s interesting. “Bounce back” is what the cell voltage does when the cell rests after a discharge. Interestingly, after heavy discharge rates, the cell bounces back higher. This corresponds to a discharge amount of less energy, and does mean that there’s energy left in the cell. So if I selected the cell with the highest bounce back (ie the cell that was discharged at the highest current), then discharged it to 2.8V at 0.2A, I’d still find that there was a lot of energy still in the cell.
Charge test
Power, Constant
Internal Resistance
Conclusion
I think this is a very good cell. It’s only rated to 10A, but in my 10A test, during which I logged temperature, the cell just barely even got warm. I think it could handle more (but I don’t think you should buy this cell for handling more). I think you should buy this cell knowing that it can handle the rated 10A easily!
Buy the Samsung INR18650-50E at LiionWholesale!
Notes
- These cells were provided by liionwholesale.com for review. I was not paid to write this review.
- This content originally appeared at zeroair.org. Please visit there for the best experience!
- Use my amazon.com referral link if you’re willing to help support making more reviews like this one!
- Please support me on Patreon! I deeply appreciate your support!