Unveiling the Hidden Factor: Internal Resistance in Battery Performance.
Two phone batteries have nearly identical capacity life cycling performance. But what a typical capacity retention plot doesn’t reveal is that one of the batteries significantly increases in internal resistance (DCIR) as it cycles.
Which battery would you want in your pocket? (Or your customer’s pocket?)
We know internal resistance is notorious for being calculated in many different ways, which is why we included 4 different common methodologies among the 70 cycle stats that we calculate and make available for plotting in Voltaiq.
These four resistance metrics are:
- Internal resistance at the start of charge
- Internal resistance at the end of charge
- Internal resistance at the start of discharge
- Internal resistance at the end of discharge
Plot it yourself:
- Load your data into a new or existing Workspace (learn how)
- Select “Cycle Number” for your X-axis
- Select “Internal Resistance Start of Charge” and “Charge Capacity” for your Y-axis
- Click Generate
Don’t see your methodology above? Use a DCIR pulse instead?
Contact our team of battery experts at support@voltaiq.com and we can show you how to build a custom metric with your own methodology. We can even develop it for you.