Samsung 50E 2S4P Battery Pack

INR21700-50E, 20Ah, 7.2V, 10A

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Samsung 50E 2S4P Specifications

Configuration 2S4P
Cell Samsung INR21700-50E
Cell size 21700
Cell chemistry
Weight 0.6 kg
Length 8.68 cm
Width 2.36 cm
Height 14.74 cm
Charge voltage 8.40 V
End voltage 5.00 V
Capacity 19600 mAh
Maximum continuous discharge current 10 A
Charge current 5 A
Watts 72 W
Energy 141 Wh
Volumetric energy density 773.35 Wh/L
Gravimetric energy density 255.43 Wh/kg
Charge time 5 hours
Operating temperature -20 ~ 60 °C

Size Variations

Samsung 50E 2S4P 1-layer in parablock 1x4

Length 43.86 mm
Width 88.16 mm
Height 73.66 mm

Samsung 50E 2S4P 1-layer in parablock 4x1

Length 172.8 mm
Width 23.6 mm
Height 73.6 mm

Samsung 50E 2S4P 2-layer in parablock 2x2

Length 43.8 mm
Width 45.1 mm
Height 147.4 mm

Samsung 50E 2S4P 2-layer in parablock 1x4

Length 22.34 mm
Width 88.14 mm
Height 147.44 mm

Samsung 50E 2S4P 2-layer in parablock 4x1

Length 86.84 mm
Width 23.64 mm
Height 147.44 mm

Calculations

Q. How to calculate the voltage for 2S4P Samsung 50E pack?

A. Take the nominal voltage of the Samsung 50E (3.6V) and multiply it by series connections (2) for a total of 7.20V.

Q. How to calculate the capacity and current for 2S4P Samsung 50E pack?

A. Take the nominal capacity of the Samsung 50E (4.90Ah) and max. continuous discharge current (9.8 A) and multiply them by the parallel connections (4) for a total of 19.60Ah and 39.2A.

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