iPod Battery Capacity Reality Check
Buying an iPod Classic replacement battery? Don't fall for fake mAh claims. Enter your battery's dimensions to estimate its true mAh and playback hours.
How the calculator works
For a given battery size, there is only so much active material that can fit inside.
This calculator estimates energy from cell volume using a conservative energy-density range for flat lithium pouch cells.
The mAh estimate is converted from the size-based energy estimate using 3.7V, the typical nominal voltage for single-cell iPod lithium pouch batteries.
Estimated playback time is based on Classic Connect 2 getting around 15 hours of Bluetooth playback from a 500mAh 3.7V battery.
The result is an estimate, not a lab test.
Cell construction, wrapping, protection circuitry, age, and manufacturing quality can all affect the final capacity.
For best results, measure with digital calipers.