Panasonic B 7S2P Specifications
| Configuration | 7S2P |
| Cell | Panasonic NCR18650B |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 0.7 kg |
| Length | 4.11 cm |
| Width | 2.09 cm |
| Height | 47.78 cm |
| Charge voltage | 29.40 V |
| End voltage | 17.50 V |
| Capacity | 6700 mAh |
| Maximum continuous discharge current | 9.75 A |
| Charge current | 3.25 A |
| Watts | 246 W |
| Energy | 169 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 7S2P 1-layer in parablock 2x1
| Length | 283.6 mm |
| Width | 22.9 mm |
| Height | 68.1 mm |
Panasonic B 7S2P 2-layer in parablock 1x2
| Length | 81.66 mm |
| Width | 43.16 mm |
| Height | 136.46 mm |
Panasonic B 7S2P 2-layer in parablock 2x1
| Length | 162.46 mm |
| Width | 22.96 mm |
| Height | 136.46 mm |
Panasonic B 7S2P 3-layer in parablock 1x2
| Length | 61.4 mm |
| Width | 41.2 mm |
| Height | 204.7 mm |
Panasonic B 7S2P 3-layer in parablock 2x1
| Length | 122.06 mm |
| Width | 22.96 mm |
| Height | 204.76 mm |
Panasonic B 7S2P 4-layer in parablock 1x2
| Length | 41.16 mm |
| Width | 41.16 mm |
| Height | 272.96 mm |
Panasonic B 7S2P 4-layer in parablock 2x1
| Length | 81.6 mm |
| Width | 22.9 mm |
| Height | 273 mm |
Panasonic B 7S2P 7-layer in parablock 1x2
| Length | 20.94 mm |
| Width | 41.14 mm |
| Height | 477.84 mm |
Panasonic B 7S2P 7-layer in parablock 2x1
| Length | 41.14 mm |
| Width | 20.94 mm |
| Height | 477.84 mm |
Calculations
Q. How to calculate the voltage for 7S2P 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 7S2P 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 (2) for a total of 6.70Ah and 9.75A.