For a typical UK home doing one cycle a day, 6,000 cycles works out to about 16 years. Here’s the maths, the 80% capacity rule, calendar ageing, and what actually shortens the answer.
6 May 2026 · Joe Murray
If a Battery Has 6,000 Cycles, How Long Will It Actually Last in Years?
6,000 cycles sounds great. But how many years is that? The plain-English maths, the 80% capacity rule nobody explains, calendar ageing, and the four things that quietly chip years off the answer.
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