Battery Building Tools Analyze & Validate

Battery Pack Design Validator

Validate your battery pack design before you build. Check for overcurrent risk, BMS mismatch, wire gauge issues, and thermal concerns.

1Design inputs

Cell FormatCell Capacity (mAh)Cell Max Discharge (A)Cell Nominal Voltage (V)Series Count (S)Parallel Count (P)Max Current Draw (A)BMS Rating (A)Wire Gauge (AWG)Fuse Rating (A)Intended Use

2Validation results

FAIL — Critical issues found

Pack Voltage50.4V

Capacity12.0Ah

Energy605Wh

Max Safe Current30A

Current draw within safe limits

Pack can deliver 80A, load requires 40A (50% utilization).

Overcurrent

BMS properly matched

BMS rating (60A) is appropriate for the load (40A) and cell limits (80A).

BMS

Wire gauge insufficient

Wire gauge 10 AWG rated for ~30A, insufficient for 40A draw. Risk of wire overheating.

Wiring

Fuse properly rated

Fuse (50A) is appropriate for the load and cell limits.

Fuse

Thermal risk acceptable

Per-cell current (10.0A) is within comfortable thermal limits.

Thermal

Weakest link: Wire (10 AWG) (30A)

The Wire (10 AWG) is the limiting factor at 30A. This is below your required current draw.

Weakest Link

Pack voltage within safe range

Pack voltage (50.4V) is below the 60V safety threshold.

Voltage