Battery State of Health Calculator

Calculate battery SOH from capacity fade.

Original Capacity

Current Capacity

Total Cycles

Battery Age

years

Nominal Voltage

Tab to move between fields

State of Health

88%

Current Energy

4.2 kWh

Remaining Cycles to EOL1,333

Annual Degradation2.4%/yr

Capacity Lost12 Ah

Original Energy4.8

How to Use This Calculator

Enter Original Capacity, Current Capacity, and Total Cycles.
Set Battery Age and Nominal Voltage.
Review State of Health (%) and Current Energy (kWh).
Use Remaining Cycles to EOL and Annual Degradation (%/yr) to inform your decision.

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