LG B4 12S3P Specifications
| Configuration | 12S3P |
| Cell | LG ICR18650B4 |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 1.7 kg |
| Length | 6.14 cm |
| Width | 2.23 cm |
| Height | 81.34 cm |
| Charge voltage | 50.40 V |
| End voltage | 33.00 V |
| Capacity | 7800 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 5 A |
| Watts | 432 W |
| Energy | 337 Wh |
| Volumetric energy density | 555.57 Wh/L |
| Gravimetric energy density | 195.02 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
LG B4 12S3P 1-layer in parablock 3x1
| Length | 728 mm |
| Width | 22.3 mm |
| Height | 67.6 mm |
LG B4 12S3P 2-layer in parablock 1x3
| Length | 122.1 mm |
| Width | 62.8 mm |
| Height | 135.5 mm |
LG B4 12S3P 2-layer in parablock 3x1
| Length | 364.46 mm |
| Width | 22.36 mm |
| Height | 135.46 mm |
LG B4 12S3P 3-layer in parablock 1x3
| Length | 81.66 mm |
| Width | 62.76 mm |
| Height | 203.26 mm |
LG B4 12S3P 3-layer in parablock 3x1
| Length | 243.3 mm |
| Width | 22.4 mm |
| Height | 203.3 mm |
LG B4 12S3P 4-layer in parablock 1x3
| Length | 61.46 mm |
| Width | 62.76 mm |
| Height | 271.06 mm |
LG B4 12S3P 4-layer in parablock 3x1
| Length | 182.7 mm |
| Width | 22.4 mm |
| Height | 271.1 mm |
LG B4 12S3P 6-layer in parablock 1x3
| Length | 41.2 mm |
| Width | 62.7 mm |
| Height | 406.6 mm |
LG B4 12S3P 6-layer in parablock 3x1
| Length | 122.06 mm |
| Width | 22.36 mm |
| Height | 406.66 mm |
LG B4 12S3P 12-layer in parablock 1x3
| Length | 20.96 mm |
| Width | 62.66 mm |
| Height | 813.36 mm |
LG B4 12S3P 12-layer in parablock 3x1
| Length | 61.36 mm |
| Width | 22.26 mm |
| Height | 813.36 mm |
Calculations
Q. How to calculate the voltage for 12S3P LG B4 pack?
A. Take the nominal voltage of the LG B4 (3.6V) and multiply it by series connections (12) for a total of 43.20V.
Q. How to calculate the capacity and current for 12S3P 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 (3) for a total of 7.80Ah and 11.25A.