Panasonic BF 7S4P Specifications
| Configuration | 7S4P |
| Cell | Panasonic NCR18650BF |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 1.3 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 | 6.52 A |
| Watts | 252 W |
| Energy | 338 Wh |
| Volumetric energy density | 688.07 Wh/L |
| Gravimetric energy density | 259.60 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
Panasonic BF 7S4P 1-layer in parablock 1x4
| Length | 144.16 mm |
| Width | 81.66 mm |
| Height | 68.16 mm |
Panasonic BF 7S4P 1-layer in parablock 4x1
| Length | 566.4 mm |
| Width | 22.9 mm |
| Height | 68.1 mm |
Panasonic BF 7S4P 2-layer in parablock 2x2
| Length | 162.5 mm |
| Width | 43.2 mm |
| Height | 136.5 mm |
Panasonic BF 7S4P 2-layer in parablock 1x4
| Length | 83.56 mm |
| Width | 81.66 mm |
| Height | 136.46 mm |
Panasonic BF 7S4P 2-layer in parablock 4x1
| Length | 324.06 mm |
| Width | 22.96 mm |
| Height | 136.46 mm |
Panasonic BF 7S4P 3-layer in parablock 2x2
| Length | 122.06 mm |
| Width | 43.16 mm |
| Height | 204.76 mm |
Panasonic BF 7S4P 3-layer in parablock 1x4
| Length | 63.36 mm |
| Width | 81.66 mm |
| Height | 204.76 mm |
Panasonic BF 7S4P 3-layer in parablock 4x1
| Length | 243.3 mm |
| Width | 23 mm |
| Height | 204.8 mm |
Panasonic BF 7S4P 4-layer in parablock 2x2
| Length | 81.66 mm |
| Width | 43.16 mm |
| Height | 273.06 mm |
Panasonic BF 7S4P 4-layer in parablock 1x4
| Length | 43.16 mm |
| Width | 81.66 mm |
| Height | 273.06 mm |
Panasonic BF 7S4P 4-layer in parablock 4x1
| Length | 162.5 mm |
| Width | 23 mm |
| Height | 273.1 mm |
Panasonic BF 7S4P 7-layer in parablock 2x2
| Length | 41.16 mm |
| Width | 41.16 mm |
| Height | 477.86 mm |
Panasonic BF 7S4P 7-layer in parablock 1x4
| Length | 22.9 mm |
| Width | 81.6 mm |
| Height | 477.9 mm |
Panasonic BF 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 BF pack?
A. Take the nominal voltage of the Panasonic BF (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 BF pack?
A. Take the nominal capacity of the Panasonic BF (3.35Ah) and max. continuous discharge current (4.88 A) and multiply them by the parallel connections (4) for a total of 13.40Ah and 19.52A.