Samsung 40T Alternative INR21700 5000mAh(2c) 18.5Wh Lithium ion Battery cell

Support Form (#5)

Battery Support OEM Wholesale

Keheng is China’s top 3.7-volt cylindrical ternary battery cell manufacturer. All 2c, 3c, 5c, 10c, and 20c battery cells support wholesale and OEM customer agent distribution, so choosing Keheng can save more than 45% of the purchase cost for 2B buyers.


INR21700 has high quality and performance; its capacity is 1000mAh larger than Samsung 40T,50E, keheng INR21700 has a capacity of up to 5000mAh, and the price is only 1/2 of the Samsung 40t battery and Panasonic 21700 battery cell because China’s lithium Ion battery manufacturer is the world’s first, keheng’s products European and American customers have recognized the quality. The competitive advantage of price has increased the market share of Keheng’s 21700 lithium-ion battery year by year.
To sum up, Keheng INR 21700 li-ion battery cells were the best and cheapest in 2022 and the best alternative to the Samsung 40t battery.
A whole series of cylindrical ternary lithium battery cells have passed CE, CB, ROHS, MSDS, IEC 62321, UN38.3 certificated

INR21700 18650 Data Sheel:

Battery Kheng INR21700-5000mAh(2c) Cylindrical Li-Ion Cell
Rated Capacity Min: 4753mAh
-Charge: 0.5C(2450mA), 4.2V, 0.02C(98mA) cut off @ RT
-Discharge: 1C(4900mA), 2.5V cutoff @ RT
Standard Capacity Nominal energy: 18.5Wh
Min: 4900mAh
-Charge: 0.5C(2450mA), 4.2V, 0.02C(98mA) cut off @ RT
-Discharge: 0.2C(980mA), 2.5V cutoff @ RT
Charging Voltage 4.2V
Nominal Voltage 3.6V
Charging Method CC-CV   (0.02C/98mA cut-off)
Charge Current Standard charge: 2450mA, charge time: 3 hours
Max. charge: 4900mA (not for cycle life)
Max. Discharge Current 2C/9800mA (for continuous discharge)
Discharge Cut-off Voltage 2.5 V
Cell Weight 69g max (2.45oz)
Cell Dimension Height: 70.80mm (2.79″ Max)
Diameter: 21.15mm (0.83″ Max)
Cycle Life Capacity ≥ 3,802mAh @ after 500cycles
(80% of the Rated Discharge Capacity @ RT)
– Charge : 0.5C(2,450mA), 4.2V, CCCV 0.05C(245mA) cut-off @ RT
– Discharge: 1C(4,900mA), 2.5V cut-off @ RT
Operating Temperature (surface temperature) Charge : 0 ~ 45℃
Discharge: -20 ~ 60℃
Discharge OTP(over temp. protection) should not exceed 60°C of the cell surface temperature. The protection set should be based on the location of the cell
surface with the highest temp increase part of the battery pack
Storage temperature One year: -20 ~ 23℃
Three months: -20 ~ 45℃
One month: -20 ~ 60℃
Note: If the cell is kept at ex-factory status (30% of charge), the capacity recovery rate is more than 80% of the standard discharge capacity.

INR21700 18650 Battery Applications

INR21700 18650 cylindrical battery cells are widely used, including mobile power supply, digital communication products, PPS portable power supply, Electronic Tools, Electric drill, Electric bicycle, Electric scooter, Electric wheelchairs, sweeping robots,forklift,power bank, moniter ,lighting,wind solar storage,  etc., with high energy density.

3.7 vlots ncm Ternary Lithium Battery Product series list

Model Nominal capacity Nominal energy Dimension (MM) Discharge rate Approx weight(G)
1800mAh 6.66Wh H65.0*D18.3 1c 44g
2000mAh 7.4Wh 1c 50g
2200mAh 8.1Wh 1c 48g
2000mAh 7.4Wh 3c 45g
2000mAh 7.4Wh 10c 48g
2500mAh 9.3Wh 3c 48g
2600MAH 9.7Wh H65.0*D18.3 3c 48g
2900MAH 10.7Wh 3c 48g
3200MAH 11.8Wh 3c 48g
4000MAH 14.8Wh H71.2*D21.4 11c 65g
3200MAH 18.5Wh 2c 72g
End of charge voltage: 4.2V;End of discharge voltage:2.75V
Charge temperature:0°C ~ 45°C;Discharge temperature:-20°C ~ 60°C;Storage temperature:-20℃-30℃
Cycle lfe(25°C,1C.@100%DOD):500 times;Cycle lfe(25°C,1C.@80%DOD): 800 times



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