Panasonic B 4S12P Specifications
| Configuration | 4S12P |
| Cell | Panasonic NCR18650B |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 2.3 kg |
| Length | 24.33 cm |
| Width | 2.24 cm |
| Height | 27.31 cm |
| Charge voltage | 16.80 V |
| End voltage | 10.00 V |
| Capacity | 40200 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 5 A |
| Watts | 144 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 4S12P 1-layer in parablock 3x4
| Length | 243.26 mm |
| Width | 82.96 mm |
| Height | 68.16 mm |
Panasonic B 4S12P 1-layer in parablock 1x12
| Length | 81.66 mm |
| Width | 244.56 mm |
| Height | 68.16 mm |
Panasonic B 4S12P 1-layer in parablock 4x3
| Length | 324.06 mm |
| Width | 62.76 mm |
| Height | 68.16 mm |
Panasonic B 4S12P 1-layer in parablock 6x2
| Length | 485.64 mm |
| Width | 42.54 mm |
| Height | 68.14 mm |
Panasonic B 4S12P 1-layer in parablock 12x1
| Length | 970.4 mm |
| Width | 22.3 mm |
| Height | 68.1 mm |
Panasonic B 4S12P 2-layer in parablock 2x6
| Length | 81.7 mm |
| Width | 123.4 mm |
| Height | 136.5 mm |
Panasonic B 4S12P 2-layer in parablock 3x4
| Length | 122.1 mm |
| Width | 83 mm |
| Height | 136.5 mm |
Panasonic B 4S12P 2-layer in parablock 4x3
| Length | 162.5 mm |
| Width | 62.8 mm |
| Height | 136.5 mm |
Panasonic B 4S12P 2-layer in parablock 6x2
| Length | 243.3 mm |
| Width | 42.6 mm |
| Height | 136.5 mm |
Panasonic B 4S12P 2-layer in parablock 1x12
| Length | 41.3 mm |
| Width | 244.6 mm |
| Height | 136.5 mm |
Panasonic B 4S12P 2-layer in parablock 12x1
| Length | 485.66 mm |
| Width | 22.36 mm |
| Height | 136.46 mm |
Panasonic B 4S12P 4-layer in parablock 2x6
| Length | 41.26 mm |
| Width | 123.36 mm |
| Height | 273.06 mm |
Panasonic B 4S12P 4-layer in parablock 3x4
| Length | 61.46 mm |
| Width | 82.96 mm |
| Height | 273.06 mm |
Panasonic B 4S12P 4-layer in parablock 4x3
| Length | 81.66 mm |
| Width | 62.76 mm |
| Height | 273.06 mm |
Panasonic B 4S12P 4-layer in parablock 6x2
| Length | 122.06 mm |
| Width | 42.56 mm |
| Height | 273.06 mm |
Panasonic B 4S12P 4-layer in parablock 1x12
| Length | 21.1 mm |
| Width | 244.6 mm |
| Height | 273.1 mm |
Panasonic B 4S12P 4-layer in parablock 12x1
| Length | 243.3 mm |
| Width | 22.4 mm |
| Height | 273.1 mm |
Calculations
Q. How to calculate the voltage for 4S12P Panasonic B pack?
A. Take the nominal voltage of the Panasonic B (3.6V) and multiply it by series connections (4) for a total of 14.40V.
Q. How to calculate the capacity and current for 4S12P 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 (12) for a total of 40.20Ah and 58.5A.