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Samsung INR21700-50G 4850mAh - 9.7A NO WRAP

Additional Information

EAN/GTIN:  7417940526553
Brand:  Samsung
Battery size:  21700
Battery chemistry:  Li-ion
Battery:  Rechargeable
Voltage  3.6V
Min. capacity in mAh: 4,900.00
Battery version:  Flat top
Discharge current: 9.70
Lithium - Protection circuit:  Unprotected
Height: 70.80
Diameter: 21.25

Availability: In stock

€3.45

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€3.45

Description

Details

1)Made in South Korea
2) Discharge Current(Max.):10A/9.7A
3) Min Capacity: 4850mAh
4)Nominal Voltage: 3.63V
5)Discharge cut-off voltage:2.5V
6)Charging Method: CC-CV
7)Charging Voltage: 4.2V
8)Weight:69.5g
9)Cycle life :Capacity ≥ 3, 880mAh @ after 1,000cycles
(80% of the Standard Discharge Capacity @ RT)
- Charge : 0.33C(1,600mA), 4.2V, CCCV 0.05C(242.5mA) cut-off @RT
- Discharge: 1C(4,850mA), 2.5V cut-off @ RT

DON'T PUT THE BATTERY WITHOUT A WRAP IN THE CHARGER! IT WILL CREATE A SHORT CIRCUIT



These batteries are from a cancelled automotive project. Batteries for automotive projects often have no wrap to save weight.

Additional Information

Details

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Reviews

Customer Reviews

Exelent quality, super fast delivery. Best of all batteries. Review by Andrej Malik
Rating
I ordered 120 cells so far and I am very satisfied. It came in 3-4 days across EU. I recomend you all to buy these, they are the cheapest considering current they uotput the capacity they have and charge cycles they have. Perfect for ebike or any electric vehicle. (Posted on 12-03-21)
date code 2J52 Review by K
Rating
+Fast delivery (2d)
+Good packaging (plenty of PE foil)
+inital voltage: 3.573 +-3mV (15 cells)
+cell age off this batch: <9 month before delivery (all date codes = 2J52)

some mc3000 measurments:
inital DC Ri = ~28mΩ
charged with 0.33C to 4.2V (0.05C cut off), discharged with 0.2C to 2.5V: 4.86Ah

tip: don't forget the insulation ring('washer') on the + side..
(Posted on 21-01-21)

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