The practice of charging a mobile device at a lower amperage than the maximum supported by both the device and the charging adapter is often discussed in relation to long-term battery health. This method involves using a power adapter with a lower wattage, resulting in a longer time to reach full charge compared to using a high-wattage “fast charger.” For example, using a 5W charger instead of a 25W charger would be considered a slower charging rate.
The potential advantage of this approach lies in its impact on heat generation during the charging process. Slower charging typically generates less heat. Elevated temperatures are known to accelerate the degradation of lithium-ion batteries, reducing their capacity and lifespan over time. Historically, battery technology was more susceptible to damage from rapid charging, but modern battery management systems have mitigated some of these risks. Despite advancements, minimizing heat exposure remains a relevant consideration for preserving battery longevity.
