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Calcimator

Battery Pack Configuration Calculator

Calculate series/parallel cell arrangement for target voltage and capacity.

Inputs

V
Ah
V
Ah
lb
$

Results

Cells in Series

15

Cells in Parallel

4

Total Cells60
Total Energy9.6 kWh
Total Weight54 kg
Cost per kWh$50.00
How to Use This Calculator
  1. Enter Cell Voltage, Cell Capacity, and Target Pack Voltage.
  2. Set Target Capacity, Cell Weight, and Cell Cost.
  3. Review Cells in Series and Cells in Parallel.
  4. Use Total Cells and Total Energy (kWh) to inform your decision.

How the result changes with Cell Voltage

Cell VoltageCells in SeriesCells in Parallel
2.1234
4.85104
8.1564
1154

What each input means

Cell Voltage
Nominal voltage per cell (3.2V for LFP, 3.7V for NMC).
Cell Capacity
Capacity per cell in amp-hours.
Target Pack Voltage
Desired battery pack voltage.
Target Capacity
Desired pack capacity in amp-hours.
Cell Weight
Weight of each cell.
Cell Cost
Cost per cell.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Cell Voltage = 3.2, Cell Capacity = 50, Target Pack Voltage = 48, Target Capacity = 200 = 6 input(s) provided
  2. Calculate Cells in Series
    Cells in Series
    15 = 15
  3. Calculate Cells in Parallel
    Cells in Parallel
    4 = 4
  4. Calculate Total Cells
    Total Cells
    60 = 60
  5. Calculate Total Energy
    Total Energy
    9.6 = 9.6

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