How to use the battery pack series and parallel calculator
Find the voltage, capacity and energy of a battery pack built from identical cells. Enter cells in series, cells in parallel, cell voltage, cell capacity in the fields above; the pack voltage, pack capacity, pack energy are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “battery pack voltage”, “series parallel cells”, “pack capacity”, “calculate battery pack series and parallel”, “find pack voltage”.
Formula
Variables
- ns — Cells in series
- np — Cells in parallel
- Vc — Cell voltage (V)
- Ahc — Cell capacity (Ah)
Worked example
With cells in series = 4, cells in parallel = 2, cell voltage = 3.6 V, cell capacity = 3 Ah, the calculator gives pack voltage ≈ 14.4 V; pack capacity ≈ 6 Ah; pack energy ≈ 86.4 Wh.
Frequently asked questions
What is the battery pack series and parallel calculator used for?
Find the voltage, capacity and energy of a battery pack built from identical cells. It helps with questions such as “battery pack voltage”, “series parallel cells”, “pack capacity”.
What is the formula for the battery pack series and parallel calculation?
Pack voltage (V) = ns × Vc. Pack capacity (Ah) = np × Ahc. Pack energy (Wh) = [Pack voltage] × [Pack capacity]. Here ns is cells in series, np is cells in parallel, Vc is cell voltage (V), Ahc is cell capacity (Ah).
What inputs do I need for the battery pack series and parallel calculator?
You need cells in series, cells in parallel, cell voltage in V, cell capacity in Ah. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the battery pack series and parallel calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the battery pack series and parallel result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.