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Basic Rider Optimization Training for the Segway
HT
Instructor Guide and Participant Workbook
Rev 3.5i - January 2004
© Segway LLC 2002
P/N 1707100001aa
Even if you do not intend to immediately use your new Segway HT, you should still charge the
Battery Packs for at least 12 hours as soon as possible. You should always plug your Segway HT into
AC power when it is not in use. Otherwise, the Battery Packs could fully discharge over time, causing
them permanent damage. You do not need to worry about overcharging.
Do not store your Segway HT or Battery Packs for more than one month without charging. This could
cause permanent damage to the Battery Packs.
To Charge the Segway HT Battery Packs
1. Make sure the Charge Port is dry. Do not insert the plug if it is wet.
2. Plug one end of the Power Cord (provided with your Segway HT) into the Charge Port in the
Control Shaft Base.
3. Plug the other end of the Power Cord into a grounded AC outlet (100 V to 240 V; 50 Hz to 60
Hz). The Power Cord should be properly grounded for charging.
Charging Indicators
The Control Shaft Base has two LED (Light Emitting
Diode) charging indicators located below the Charge
Port.
The left charging indicator corresponds to the front
Battery Pack, the right to the rear Battery Pack. They are
marked with an “F” and “R,” respectively. The charging
indicators provide independent information regarding
whether each Battery Pack is charging. Any time the LED
green light is on, the respective Battery Pack is receiving
a pulse of current. Slow pulse rates are slow charging
rates, faster rates denote faster charging, and solid green
is the maximum charge rate.
Charging Process
There are four stages in the charging process:
1. Immediately after the Segway HT is plugged in, the Battery Packs perform a test to determine
if it is appropriate to charge at the maximum charge rate. While this test is occurring, the
Battery Packs charge slowly at a trickle rate. The charging indicator pulses green every few
seconds, giving the Battery Pack short pulses of current.
2. After about two minutes (longer if the Battery Packs are very warm, cold, or completely
discharged), the Battery Packs will begin charging at the fast rate, with the charging indicator
glowing solid green.
3. The Battery Pack electronics will monitor the Battery Pack voltage and temperature to
determine when it is full and will then start pulsing at a rapid rate. This rapid pulsing rate will
continue for approximately three hours while a cell balancing process is completed to
distribute the energy throughout all the cells in the Battery Packs.
4. At the end of the cell balancing process, the pulse rate will become slow and will continue at
the slow rate until the Segway HT is unplugged.