Panasonic B 7S4P Specifications
| Configuration | 7S4P |
| Cell | Panasonic NCR18650B |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 1.4 kg |
| Length | 8.16 cm |
| Width | 2.29 cm |
| Height | 47.79 cm |
| Charge voltage | 29.40 V |
| End voltage | 17.50 V |
| Capacity | 13400 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 6.5 A |
| Watts | 252 W |
| Energy | 338 Wh |
| Volumetric energy density | 688.07 Wh/L |
| Gravimetric energy density | 248.90 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
Panasonic B 7S4P 1-layer in parablock 1x4
| Length | 144.16 mm |
| Width | 81.66 mm |
| Height | 68.16 mm |
Panasonic B 7S4P 1-layer in parablock 4x1
| Length | 566.4 mm |
| Width | 22.9 mm |
| Height | 68.1 mm |
Panasonic B 7S4P 2-layer in parablock 2x2
| Length | 162.5 mm |
| Width | 43.2 mm |
| Height | 136.5 mm |
Panasonic B 7S4P 2-layer in parablock 1x4
| Length | 83.56 mm |
| Width | 81.66 mm |
| Height | 136.46 mm |
Panasonic B 7S4P 2-layer in parablock 4x1
| Length | 324.06 mm |
| Width | 22.96 mm |
| Height | 136.46 mm |
Panasonic B 7S4P 3-layer in parablock 2x2
| Length | 122.06 mm |
| Width | 43.16 mm |
| Height | 204.76 mm |
Panasonic B 7S4P 3-layer in parablock 1x4
| Length | 63.36 mm |
| Width | 81.66 mm |
| Height | 204.76 mm |
Panasonic B 7S4P 3-layer in parablock 4x1
| Length | 243.3 mm |
| Width | 23 mm |
| Height | 204.8 mm |
Panasonic B 7S4P 4-layer in parablock 2x2
| Length | 81.66 mm |
| Width | 43.16 mm |
| Height | 273.06 mm |
Panasonic B 7S4P 4-layer in parablock 1x4
| Length | 43.16 mm |
| Width | 81.66 mm |
| Height | 273.06 mm |
Panasonic B 7S4P 4-layer in parablock 4x1
| Length | 162.5 mm |
| Width | 23 mm |
| Height | 273.1 mm |
Panasonic B 7S4P 7-layer in parablock 2x2
| Length | 41.16 mm |
| Width | 41.16 mm |
| Height | 477.86 mm |
Panasonic B 7S4P 7-layer in parablock 1x4
| Length | 22.9 mm |
| Width | 81.6 mm |
| Height | 477.9 mm |
Panasonic B 7S4P 7-layer in parablock 4x1
| Length | 81.6 mm |
| Width | 22.9 mm |
| Height | 477.9 mm |
Calculations
Q. How to calculate the voltage for 7S4P Panasonic B pack?
A. Take the nominal voltage of the Panasonic B (3.6V) and multiply it by series connections (7) for a total of 25.20V.
Q. How to calculate the capacity and current for 7S4P 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.