LG HD2 7S21P Specifications

Configuration	7S21P
Cell	LG 18650HD2
Cell size	18650
Cell chemistry
Weight	7.1 kg
Length	42.51 cm
Width	2.30 cm
Height	47.73 cm
Charge voltage	29.40 V
End voltage	17.50 V
Capacity	42000 mAh
Maximum continuous discharge current	10 A
Charge current	10 A
Watts	256 W
Energy	1073 Wh
Volumetric energy density	416.70 Wh/L
Gravimetric energy density	152.07 Wh/kg
Charge time	5 hours
Operating temperature	-20 ~ 70 °C

Size Variations

LG HD2 7S21P 1-layer in parablock 3x7

Length	427 mm
Width	142.3 mm
Height	68.1 mm

LG HD2 7S21P 1-layer in parablock 7x3

Length	990.66 mm
Width	63.36 mm
Height	68.06 mm

LG HD2 7S21P 1-layer in parablock 21x1

Length	2970.2 mm
Width	22.9 mm
Height	68 mm

LG HD2 7S21P 2-layer in parablock 3x7

Length	245.2 mm
Width	142.3 mm
Height	136.3 mm

LG HD2 7S21P 2-layer in parablock 1x21

Length	83.6 mm
Width	425.1 mm
Height	136.3 mm

LG HD2 7S21P 2-layer in parablock 7x3

Length	566.5 mm
Width	63.4 mm
Height	136.3 mm

LG HD2 7S21P 2-layer in parablock 21x1

Length	1697.66 mm
Width	22.96 mm
Height	136.26 mm

LG HD2 7S21P 3-layer in parablock 3x7

Length	184.6 mm
Width	142.3 mm
Height	204.5 mm

LG HD2 7S21P 3-layer in parablock 7x3

Length	425.1 mm
Width	63.4 mm
Height	204.5 mm

LG HD2 7S21P 3-layer in parablock 1x21

Length	63.4 mm
Width	425.1 mm
Height	204.5 mm

LG HD2 7S21P 3-layer in parablock 21x1

Length	1273.5 mm
Width	23 mm
Height	204.5 mm

LG HD2 7S21P 4-layer in parablock 3x7

Length	124 mm
Width	142.3 mm
Height	272.7 mm

LG HD2 7S21P 4-layer in parablock 7x3

Length	283.7 mm
Width	63.4 mm
Height	272.7 mm

LG HD2 7S21P 4-layer in parablock 1x21

Length	43.2 mm
Width	425.1 mm
Height	272.7 mm

LG HD2 7S21P 4-layer in parablock 21x1

Length	849.3 mm
Width	23 mm
Height	272.7 mm

LG HD2 7S21P 7-layer in parablock 3x7

Length	63.4 mm
Width	142.3 mm
Height	477.3 mm

LG HD2 7S21P 7-layer in parablock 7x3

Length	142.3 mm
Width	63.4 mm
Height	477.3 mm

LG HD2 7S21P 7-layer in parablock 1x21

Length	23 mm
Width	425.1 mm
Height	477.3 mm

LG HD2 7S21P 7-layer in parablock 21x1

Length	425.1 mm
Width	23 mm
Height	477.3 mm

Calculations

Q. How to calculate the voltage for 7S21P LG HD2 pack?

A. Take the nominal voltage of the LG HD2 (3.65V) and multiply it by series connections (7) for a total of 25.55V.

Q. How to calculate the capacity and current for 7S21P LG HD2 pack?

A. Take the nominal capacity of the LG HD2 (2.00Ah) and max. continuous discharge current (25 A) and multiply them by the parallel connections (21) for a total of 42.00Ah and 525A.

LG HD2 7S21P Battery Pack

LG HD2 7S21P Specifications

Size Variations

Calculations