circle battery question

[mattywalnuts]

Have the circle battery app for my GNex and noticed when you click on the widget and select 'battery' one of the readings states 'battery health: good'

Anyone know how the battery health is getting measured and what the levels are?

 

[sleeco]

I don't know if it helps, but have a look at battery usage.

 

[T.M.M.L]

Greetings matty,

I would guess that the app is not actually giving a reading of the battery's health, but more or less a representation of the charge level, maybe temperature as well.

As an experiment, allow the charge to go below half, and then check the health again.

 

[UncleVanya]

Battery Health often is used to reflect the age of the battery in charge cycles and estimate of how degraded the battery is vs. brand new. 100% is not degrated, 90% means a loss of 10% of capacity due to "wear and tear" (charging). Some batteries maintain a small memory area and keep up with this kind of info in a programable register that can be updated and used by the OS to determine when full charge has been met.