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How Long Will Your Battery Really Last?

Depth of discharge is the lever: free SoH, cycle-life and warranty checkers for EVs, home batteries and inverters.

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EV Car Pack SoH Calculator

Estimate state of health for a ev car pack from age, cycling pattern and depth of discharge.

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LFP (LiFePO₄) Cycle Life Calculator

Cycle life and service years for LFP (LiFePO₄) at your depth of discharge and cycling rate (rated 4,000 cycles).

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DoD vs Battery Lifespan Calculator

See how depth of discharge changes cycle life for any chemistry — the single biggest lever you control.

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EV Battery Warranty Checker

Check measured battery SoH against the warranty line — 8 yr to 70%.

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Inverter Battery Backup Time Calculator

How long will an inverter battery run your load? Peukert-corrected backup hours for Indian tubular banks.

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Home Battery Degradation Forecast

Year-by-year capacity fade and usable kWh forecast for a home battery, to your end-of-life threshold.

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