Panasonic B 4S2P Specifications
| Configuration | 4S2P |
| Cell | Panasonic NCR20700B |
| Cell size | 20700 |
| Cell chemistry | |
| Weight | 0.5 kg |
| Length | 4.14 cm |
| Width | 2.24 cm |
| Height | 29.29 cm |
| Charge voltage | 16.80 V |
| End voltage | 10.00 V |
| Capacity | 8500 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 4 A |
| Watts | 144 W |
| Energy | 122 Wh |
| Volumetric energy density | 667.29 Wh/L |
| Gravimetric energy density | 242.06 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
Panasonic B 4S2P 1-layer in parablock 2x1
| Length | 163.6 mm |
| Width | 22.45 mm |
| Height | 73.1 mm |
Panasonic B 4S2P 2-layer in parablock 1x2
| Length | 41.46 mm |
| Width | 42.76 mm |
| Height | 146.36 mm |
Panasonic B 4S2P 2-layer in parablock 2x1
| Length | 82.2 mm |
| Width | 22.45 mm |
| Height | 146.4 mm |
Panasonic B 4S2P 4-layer in parablock 1x2
| Length | 21.09 mm |
| Width | 42.74 mm |
| Height | 292.94 mm |
Panasonic B 4S2P 4-layer in parablock 2x1
| Length | 41.44 mm |
| Width | 22.39 mm |
| Height | 292.94 mm |
Calculations
Q. How to calculate the voltage for 4S2P 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 4S2P Panasonic B pack?
A. Take the nominal capacity of the Panasonic B (4.25Ah) and max. continuous discharge current (20 A) and multiply them by the parallel connections (2) for a total of 8.50Ah and 40A.