Panasonic B 12S4P Specifications
| Configuration | 12S4P |
| Cell | Panasonic NCR18650B |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 2.3 kg |
| Length | 8.16 cm |
| Width | 2.23 cm |
| Height | 81.94 cm |
| Charge voltage | 50.40 V |
| End voltage | 30.00 V |
| Capacity | 13400 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 5 A |
| Watts | 432 W |
| Energy | 579 Wh |
| Volumetric energy density | 687.56 Wh/L |
| Gravimetric energy density | 248.71 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
Panasonic B 12S4P 1-layer in parablock 2x2
| Length | 485.64 mm |
| Width | 42.54 mm |
| Height | 68.14 mm |
Panasonic B 12S4P 1-layer in parablock 4x1
| Length | 970.4 mm |
| Width | 22.3 mm |
| Height | 68.1 mm |
Panasonic B 12S4P 2-layer in parablock 2x2
| Length | 243.3 mm |
| Width | 42.6 mm |
| Height | 136.5 mm |
Panasonic B 12S4P 2-layer in parablock 1x4
| Length | 122.1 mm |
| Width | 83 mm |
| Height | 136.5 mm |
Panasonic B 12S4P 2-layer in parablock 4x1
| Length | 485.66 mm |
| Width | 22.36 mm |
| Height | 136.46 mm |
Panasonic B 12S4P 3-layer in parablock 2x2
| Length | 162.5 mm |
| Width | 42.6 mm |
| Height | 204.8 mm |
Panasonic B 12S4P 3-layer in parablock 1x4
| Length | 81.66 mm |
| Width | 82.96 mm |
| Height | 204.76 mm |
Panasonic B 12S4P 3-layer in parablock 4x1
| Length | 324.1 mm |
| Width | 22.4 mm |
| Height | 204.8 mm |
Panasonic B 12S4P 4-layer in parablock 2x2
| Length | 122.06 mm |
| Width | 42.56 mm |
| Height | 273.06 mm |
Panasonic B 12S4P 4-layer in parablock 1x4
| Length | 61.46 mm |
| Width | 82.96 mm |
| Height | 273.06 mm |
Panasonic B 12S4P 4-layer in parablock 4x1
| Length | 243.3 mm |
| Width | 22.4 mm |
| Height | 273.1 mm |
Panasonic B 12S4P 6-layer in parablock 2x2
| Length | 81.66 mm |
| Width | 42.56 mm |
| Height | 409.66 mm |
Panasonic B 12S4P 6-layer in parablock 1x4
| Length | 41.26 mm |
| Width | 82.96 mm |
| Height | 409.66 mm |
Panasonic B 12S4P 6-layer in parablock 4x1
| Length | 162.5 mm |
| Width | 22.4 mm |
| Height | 409.7 mm |
Panasonic B 12S4P 12-layer in parablock 2x2
| Length | 41.16 mm |
| Width | 42.46 mm |
| Height | 819.36 mm |
Panasonic B 12S4P 12-layer in parablock 1x4
| Length | 21 mm |
| Width | 82.9 mm |
| Height | 819.4 mm |
Panasonic B 12S4P 12-layer in parablock 4x1
| Length | 81.6 mm |
| Width | 22.3 mm |
| Height | 819.4 mm |
Calculations
Q. How to calculate the voltage for 12S4P Panasonic B pack?
A. Take the nominal voltage of the Panasonic B (3.6V) and multiply it by series connections (12) for a total of 43.20V.
Q. How to calculate the capacity and current for 12S4P Panasonic B pack?
A. Take the nominal capacity of the Panasonic B (3.35Ah) and max. continuous discharge current (4.875 A) and multiply them by the parallel connections (4) for a total of 13.40Ah and 19.5A.