Lithium-ion phone batteries lose capacity as they go through repeated charge cycles.

Is it true that lithium-ion phone batteries lose capacity as they go through repeated charge cycles?

Unclear. The retrieved items only partially support the claim: a Skeptics.SE answer notes Li-ion capacity may reduce as charge cycles increase, a phone-battery cycle-life study examines charge/discharge cycling at 50 °C, and a chemistry article says one cathode can be charged many times before losing capacity. None of these directly measures capacity loss in phone batteries across repeated cycles.

Verdict: PARTIAL LEAN · 5 sources for, 0 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Research in lithium-ion batteries. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Research_in_lithium-ion_batteries

Charging Lithium-Ion batteries. (2011). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/6392/charging-lithium-ion-batteries

Synergistic Effect of Charge/Discharge Cycle and Storage in Degradation of Lithium-ion Batteries for Mobile Phones. (n.d.). cir.nii.ac.jp. https://doi.org/10.1109/intlec.2005.335100

Patel, P. (2015). Improving the Lithium-Ion Battery. doi.org. https://doi.org/10.1021/acscentsci.5b00223

Battery Power/Lithium Ion Batteries. (n.d.). en.wikibooks.org. https://en.wikibooks.org/wiki/Battery_Power/Lithium_Ion_Batteries