LG B4 7S2P Specifications
| Configuration | 7S2P |
| Cell | LG ICR18650B4 |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 0.7 kg |
| Length | 4.11 cm |
| Width | 2.09 cm |
| Height | 47.43 cm |
| Charge voltage | 29.40 V |
| End voltage | 19.25 V |
| Capacity | 5200 mAh |
| Maximum continuous discharge current | 7.5 A |
| Charge current | 5 A |
| Watts | 189 W |
| Energy | 131 Wh |
| Volumetric energy density | 555.34 Wh/L |
| Gravimetric energy density | 194.94 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 60 °C |
Size Variations
LG B4 7S2P 1-layer in parablock 2x1
| Length | 283.6 mm |
| Width | 22.9 mm |
| Height | 67.6 mm |
LG B4 7S2P 2-layer in parablock 1x2
| Length | 81.66 mm |
| Width | 43.16 mm |
| Height | 135.46 mm |
LG B4 7S2P 2-layer in parablock 2x1
| Length | 162.46 mm |
| Width | 22.96 mm |
| Height | 135.46 mm |
LG B4 7S2P 3-layer in parablock 1x2
| Length | 61.4 mm |
| Width | 41.2 mm |
| Height | 203.2 mm |
LG B4 7S2P 3-layer in parablock 2x1
| Length | 122.06 mm |
| Width | 22.96 mm |
| Height | 203.26 mm |
LG B4 7S2P 4-layer in parablock 1x2
| Length | 41.16 mm |
| Width | 41.16 mm |
| Height | 270.96 mm |
LG B4 7S2P 4-layer in parablock 2x1
| Length | 81.6 mm |
| Width | 22.9 mm |
| Height | 271 mm |
LG B4 7S2P 7-layer in parablock 1x2
| Length | 20.94 mm |
| Width | 41.14 mm |
| Height | 474.34 mm |
LG B4 7S2P 7-layer in parablock 2x1
| Length | 41.14 mm |
| Width | 20.94 mm |
| Height | 474.34 mm |
Calculations
Q. How to calculate the voltage for 7S2P LG B4 pack?
A. Take the nominal voltage of the LG B4 (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 LG B4 pack?
A. Take the nominal capacity of the LG B4 (2.60Ah) and max. continuous discharge current (3.75 A) and multiply them by the parallel connections (2) for a total of 5.20Ah and 7.5A.