Cycle life
Also known as: Battery Cycle Life
The number of full charge-discharge cycles a battery can complete before its capacity degrades to a defined threshold — typically 80% of original nameplate capacity. LFP batteries achieve 3,000–6,000+ cycles under normal operating conditions.
In energy storage
Cycle life is a key input to the financial model — it determines how quickly the battery degrades and when augmentation is needed to maintain contracted capacity. Actual cycle life depends heavily on operating conditions: shallow cycling (low DoD) and moderate temperatures extend it, while high C-rates, deep cycling, and elevated temperatures accelerate degradation.
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