Hold onto your hats, folks, because the way you use your battery matters! High charge and discharge rates, keeping a battery at maximum capacity for extended periods, and frequent shallow discharging – these are all culprits that speed up capacity loss. Don’t underestimate the impact of Mother Nature on battery capacity!
Capacity loss is C-rate sensitive and higher C-rates lead to a faster capacity loss on a per cycle. Chemical mechanisms of degradation in a Li-ion battery dominate capacity loss at low C-rates, whereas, mechanical degradation dominates at high C-rates.
Simply put, battery capacity indicates how much charge a battery can store at a given time, determining how long it can supply power. But over time, you may notice your trusty devices losing their zest, requiring more frequent charging. This phenomenon, folks, is due to batteries losing capacity.
Although it is normal for battery capacity to decrease over time, I would run a 'manual' calibration. By that I mean let your battery drain right down until it is no longer capable of powering your laptop. Then plug in the power lead and let the battery fully charge to maximum (without using the computer). So, plug it in until it charges 100%.
In 2003 it was reported the typical range of capacity loss in lithium-ion batteries after 500 charging and discharging cycles varied from 12.4% to 24.1%, giving an average capacity loss per cycle range of 0.025–0.048% per cycle.
Batteries don’t exactly wave a red flag when their capacity starts to decline. But fear not, dear reader, for there are signs you can look out for: Decreased Device Run-Time: This one’s a no-brainer. If your device isn’t lasting as long between charges, your battery is likely losing capacity.
Capacity fading in Li-ion batteries occurs by a multitude of stress factors, including ambient temperature, discharge C-rate, and state of charge (SOC). Capacity loss is strongly temperature-dependent, the aging rates increase with decreasing temperature below 25 °C, while above 25 °C aging is accelerated with increasing temperature. Capacity loss is C-rate sensitive and higher C-rates lead to a faster capacity loss on a per cycle. …