Battery Configuration Calculator

Battery Configuration Formulas:

\[ V_{total} = n_{series} \times V_{cell} \] \[ Capacity = n_{parallel} \times Capacity_{cell} \]

Cell Voltage:

Cell Capacity:

Series Count (n):

Parallel Count (n):

Total Voltage: V

Total Capacity: Ah

Total Energy: Wh

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1. What is a Battery Configuration Calculator?

Definition: This calculator determines the total voltage, capacity, and energy of a battery pack based on individual cell specifications and series/parallel configuration.

Purpose: It helps engineers, hobbyists, and technicians design battery packs for various applications including EVs, solar systems, and electronics.

2. How Does the Calculator Work?

The calculator uses these formulas:

\[ V_{total} = n_{series} \times V_{cell} \] \[ Capacity = n_{parallel} \times Capacity_{cell} \] \[ Energy = V_{total} \times Capacity \]

Where:

\( V_{total} \) — Total battery pack voltage (V)
\( V_{cell} \) — Voltage of individual cell (V)
\( n_{series} \) — Number of cells in series
\( Capacity \) — Total battery pack capacity (Ah)
\( Capacity_{cell} \) — Capacity of individual cell (Ah)
\( n_{parallel} \) — Number of parallel strings
\( Energy \) — Total energy storage (Wh)

Explanation: Series connections increase voltage while parallel connections increase capacity.

3. Importance of Battery Configuration

Details: Proper battery configuration ensures the correct voltage and capacity for your application while maintaining safe operating conditions.

4. Using the Calculator

Tips: Enter the cell voltage (default 3.7V for Li-ion), cell capacity (default 2.5Ah), number of series cells, and number of parallel strings. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between series and parallel?
A: Series increases voltage (V), parallel increases capacity (Ah). Series-parallel combines both effects.

Q2: What's a typical cell voltage?
A: Li-ion: 3.7V, LiFePO4: 3.2V, Lead-acid: 2V, NiMH: 1.2V per cell.

Q3: How does configuration affect battery life?
A: Proper configuration ensures cells work within their specifications, maximizing lifespan.

Q4: What about balancing and BMS?
A: This calculator doesn't account for balancing needs - always use a BMS with multiple cells.

Q5: Can I mix different cells?
A: Never mix different cell types, capacities, or ages in the same battery pack.