
Panasonic B 4S8P Specifications
Configuration | 4S8P |
Cell | Panasonic NCR20700B |
Cell size | 20700 |
Cell chemistry | |
Weight | 2.0 kg |
Length | 16.37 cm |
Width | 2.25 cm |
Height | 29.31 cm |
Charge voltage | 16.80 V |
End voltage | 10.00 V |
Capacity | 34000 mAh |
Maximum continuous discharge current | 10 A |
Charge current | 5 A |
Watts | 144 W |
Energy | 490 Wh |
Volumetric energy density | 670.03 Wh/L |
Gravimetric energy density | 243.06 Wh/kg |
Charge time | 5 hours |
Operating temperature | -20 ~ 60 °C |
Size Variations

Panasonic B 4S8P 1-layer in parablock 1x8
Length | 82.26 mm |
Width | 164.96 mm |
Height | 73.16 mm |

Panasonic B 4S8P 1-layer in parablock 4x2
Length | 326.44 mm |
Width | 42.84 mm |
Height | 73.14 mm |

Panasonic B 4S8P 1-layer in parablock 8x1
Length | 652 mm |
Width | 22.45 mm |
Height | 73.1 mm |

Panasonic B 4S8P 2-layer in parablock 2x4
Length | 82.26 mm |
Width | 83.56 mm |
Height | 146.46 mm |

Panasonic B 4S8P 2-layer in parablock 4x2
Length | 163.7 mm |
Width | 42.9 mm |
Height | 146.5 mm |

Panasonic B 4S8P 2-layer in parablock 1x8
Length | 41.6 mm |
Width | 165 mm |
Height | 146.5 mm |

Panasonic B 4S8P 2-layer in parablock 8x1
Length | 326.5 mm |
Width | 22.55 mm |
Height | 146.5 mm |

Panasonic B 4S8P 4-layer in parablock 2x4
Length | 41.56 mm |
Width | 83.56 mm |
Height | 293.06 mm |

Panasonic B 4S8P 4-layer in parablock 4x2
Length | 82.26 mm |
Width | 42.86 mm |
Height | 293.06 mm |

Panasonic B 4S8P 4-layer in parablock 1x8
Length | 21.25 mm |
Width | 165 mm |
Height | 293.1 mm |

Panasonic B 4S8P 4-layer in parablock 8x1
Length | 163.7 mm |
Width | 22.55 mm |
Height | 293.1 mm |
Calculations
Q. How to calculate the voltage for 4S8P 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 4S8P 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 (8) for a total of 34.00Ah and 160A.