Defined term

Battery cycle life

Battery cycle life is the number of defined charge-discharge cycles completed before a specified performance endpoint is reached under stated test conditions.

Also known as storage cycle life

measurement · Concept code GS-CONCEPT-050 · Last verified August 20, 2026

Definition and boundaries

Definition

Battery cycle life is the number of defined charge-discharge cycles completed before a specified performance endpoint is reached under stated test conditions.

Definition claim verification: Verified August 20, 2026

In plain language

When comparing Battery cycle life, keep the unit, time period, measurement boundary, and underlying assumptions the same on both sides.

What it is not

It is not a calendar-life guarantee and one partial cycle is not automatically equivalent to one full test cycle.

Decision context

Why it matters

Cycle definition, depth of discharge, rate, temperature, calendar time, operating limits, and endpoint criterion all affect the reported result.

Decision-context claim verification: Verified August 20, 2026

Information boundary

This page provides general educational context, not a site design, production guarantee, utility determination, contract interpretation, legal opinion, tax conclusion, or individualized financial advice. Verify property, equipment, utility, jurisdiction, program, and agreement details before acting.

Concept relationships

Affects

  • Solar battery storagePublished conceptBattery cycle life can affect how Solar battery storage is evaluated
  • Payback periodPublished conceptBattery cycle life can affect how Payback period is evaluated

Primary sources

What to do next

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