LG B4 2S8P Battery Pack

ICR18650B4, 21Ah, 7.2V, 10A

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LG B4 2S8P Specifications

Configuration 2S8P
Cell LG ICR18650B4
Cell size 18650
Cell chemistry
Weight 0.8 kg
Length 16.25 cm
Width 2.24 cm
Height 13.55 cm
Charge voltage 8.40 V
End voltage 5.50 V
Capacity 20800 mAh
Maximum continuous discharge current 10 A
Charge current 5 A
Watts 72 W
Energy 150 Wh
Volumetric energy density 556.40 Wh/L
Gravimetric energy density 195.31 Wh/kg
Charge time 5 hours
Operating temperature -20 ~ 60 °C

Size Variations

LG B4 2S8P 1-layer in parablock 4x2

Length 162.44 mm
Width 42.54 mm
Height 67.64 mm

LG B4 2S8P 1-layer in parablock 1x8

Length 41.2 mm
Width 163.7 mm
Height 67.6 mm

LG B4 2S8P 1-layer in parablock 8x1

Length 324 mm
Width 22.3 mm
Height 67.6 mm

LG B4 2S8P 2-layer in parablock 2x4

Length 41.26 mm
Width 82.96 mm
Height 135.46 mm

LG B4 2S8P 2-layer in parablock 4x2

Length 81.66 mm
Width 42.56 mm
Height 135.46 mm

LG B4 2S8P 2-layer in parablock 1x8

Length 21.06 mm
Width 163.76 mm
Height 135.46 mm

LG B4 2S8P 2-layer in parablock 8x1

Length 162.46 mm
Width 22.36 mm
Height 135.46 mm

Calculations

Q. How to calculate the voltage for 2S8P LG B4 pack?

A. Take the nominal voltage of the LG B4 (3.6V) and multiply it by series connections (2) for a total of 7.20V.

Q. How to calculate the capacity and current for 2S8P LG B4 pack?

A. Take the nominal capacity of the LG B4 (2.60Ah) and max. continuous discharge current (3.75 A) and multiply them by the parallel connections (8) for a total of 20.80Ah and 30A.

Built by Voltaplex Energy

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