Battery Voltage Calculator
Calculate battery pack voltage, capacity, and runtime for series, parallel, and series-parallel configurations. Design optimal battery systems for your applications.
Battery Configurations
Series Configuration
[+|-] ──── [+|-] ──── [+|-]
V₁ + V₂ + V₃ = Vtotal
Same capacity
Parallel Configuration
[+|-] ┬─── [+|-] ┬─── [+|-]
│ │
└──────────┴─────────
Same voltage, C₁ + C₂ + C₃
About Battery Configurations
Understanding battery configurations is crucial for designing power systems. Different configurations provide different voltage and capacity characteristics.
Configuration Types:
- Series: Increases voltage, maintains capacity
- Parallel: Maintains voltage, increases capacity
- Series-Parallel: Increases both voltage and capacity
Common Battery Types:
- AA Alkaline: 1.5V, 2.5Ah
- 18650 Li-ion: 3.7V, 2.5-3.5Ah
- Lead Acid: 2V per cell, various capacities
- LiFePO4: 3.2V per cell, long life
Design Considerations:
- Voltage requirements of the load
- Current capacity needed
- Runtime requirements
- Physical size and weight constraints
- Cost and availability