Surface Charge (Partial Charge); Recalibrating The Display - Segway PT x2 Reference Manual

Surface Charge (Partial Charge)

Whenever you do not fully charge the Segway PT's Batteries, surface
charge or partial charge may affect the accuracy of the Battery
charge level display, causing it to show a higher charge level than
actually exists.
After you power on, check the Battery charge level display and then
ride for at least three or four minutes and check the Battery charge
level display again. If the Battery charge level display shows rapid
charge depletion during this time, the Batteries have received only a
surface charge. If necessary, plug the Segway PT back in and
recharge.

Recalibrating the Display

The Segway PT indicates the Battery charge level in the InfoKey
Controller, as described in "Reading the Battery Charge Level
Display" on page 71.
The display may be inaccurate after long periods of storage, or during
initial use. To recalibrate the display:
1. Fully charge the Batteries for 12 hours.
2. Discharge the Batteries until the bottom bar in the Display is
blinking (approximately 10 percent Battery charge remaining).
The InfoKey Controller will display the following:
3. Leave your Segway PT in a safe, secure location, powered on,
until the Battery charge is fully depleted, and your Segway PT
powers down.
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