Advanced Battery Pack Design Calculator

Professional battery pack design with advanced analysis: pack configuration, runtime calculations, charging analysis, cost estimation, and thermal management.

Cell Chemistry

Cell Nominal Voltage V

Cell Min Voltage V

Cell Max Voltage V

Cell Capacity

Cell C-Rating C

Target Pack Voltage V

Target Pack Capacity

Enter all values to see configuration details

Results will appear here

Recommended BMS Specifications:

Battery Pack Layout

Legend: S = Series, P = Parallel

Grid is for illustration only. Actual pack wiring/layout may differ.

Advanced Battery Analysis Tools

Battery Runtime Calculator

Pack Capacity

Load Current

Pack Voltage V

Efficiency %

Enter values to calculate runtime

Charging Time Calculator

Pack Capacity

Current SOC %

Target SOC %

Charging Current A

Charging Efficiency %

Enter values to calculate charging time

Wire Sizing Calculator

Max Current A

Wire Length

Voltage Drop % max

System Voltage V

Enter values to calculate wire gauge

Thermal Management

Discharge Current A

Internal Resistance mΩ

Ambient Temp °C

Thermal Resistance °C/W

Enter values to calculate temperature

Battery Degradation

Initial Capacity Ah

Cycles Completed cycles

DOD per Cycle %

Avg Temperature °C

Time in Service months

Enter values to calculate degradation

How does this calculator work?

Series cells (S) = Target Voltage / Cell Voltage
Parallel cells (P) = Target Capacity / Cell Capacity
Pack Capacity = Cell Capacity × P
Pack Voltage = Cell Voltage × S
Total Energy = Pack Voltage × Pack Capacity (Wh)
Max Discharge = Cell Capacity × C-Rating × P

Design Examples with Equations

Low Power: IoT Sensor Node

Chemistry: Li-ion (3.7V)
Target: 3.7V, 2.5Ah
S = 3.7/3.7 = 1
P = 2.5/2.5 = 1
Total = 1S1P (1 cell)
BMS: 1S 1A BMS

Medium Power: E-Bike Battery

Chemistry: LiFePO4 (3.2V, 5Ah, 3C)
Target: 48V, 15Ah
S = 48/3.2 = 15
P = 15/5 = 3
Total = 15S3P (45 cells)
Max Discharge = 5×3×3 = 45A
BMS: 15S 45A BMS

High Power: Home Storage

Chemistry: LiFePO4 (3.2V, 100Ah, 1C)
Target: 51.2V, 100Ah
S = 51.2/3.2 = 16
P = 100/100 = 1
Total = 16S1P (16 cells)
Max Discharge = 100×1×1 = 100A
BMS: 16S 120A Smart BMS