Segway p Series, User Manual, Page: 28 / 52

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Temperature Affects Performance
The Battery Packs will generally be significantly
warmer than the air temperature due to heating that
occurs as electricity is delivered from them (while
riding) and to them (while charging.)
Riding in Hot or Cold Temperatures
The Battery Packs will run at the highest capacity when
you operate them nearest the center of the
recommended operating temperature range.
If the Battery Packs on your Segway HT become too hot
or too cold while riding, the Segway HT may reduce
performance (Display icon with straight mouth, Speed
Limiter and possibly Stick Shake Warning) or perform
Safety Shutdown. Ease up. If performance does not
return to normal, stop riding and allow your Battery
Packs to warm or cool to within the recommended
operating temperature range.
As with all batteries, less energy is available at low
battery temperatures. You may not be able to travel the
same distance when the Battery Packs are cold, as
when the Battery Packs are nearer to room
temperature.
Charging in Hot or Cold Temperatures
Your Battery Packs should be within the recommended
charging temperature range prior to and during
charging (see page 23). The Battery Packs will charge
most efficiently when they are nearest the center of the
recommended charging temperature range.
If your Battery Packs are too hot or too cold, they may
take longer to charge, or they may not charge at all.
If you are concerned that the Battery Packs may be too
cold or overheated during charging, refer to Charging
Failures on page 26.
Replacing Battery Packs
Battery Packs should last the equivalent of 300 to 500
full charges. As your Battery Packs near the end of
their useful life, they need more frequent charging and
your Segway HT’s range will be reduced. To order
replacement Battery Packs, contact an Authorized
Segway Dealer. For a list of Dealers, visit
www.segway.com.
Use the Same Battery Pack Types
Your Segway HT is powered by two rechargeable
Battery Packs. The p Series model uses two 48-cell
NiMH Battery Packs. The i Series model uses either
two 60-cell NiMH or two Li-ion Battery Packs. The
Segway XT and the Segway GT models use two Li-ion
Battery Packs.
Do not mix Battery Pack types. Always use Battery
Packs in pairs of the same chemistry, for example, two
NiMH or two Li-ion Battery Packs. If two Battery Packs
of different chemistry type are installed on the same
machine, you will be unable to operate your Segway HT,
and you will see the following Display when you attempt
to power on:
Replace Battery Packs in Pairs
Whenever you replace a Battery Pack, consider
replacing both Battery Packs, and always use pairs of
Battery Packs with the same chemistry. Replacing only
one Battery Pack will not necessarily increase the
performance or range of your Segway HT, because the
Segway HT is designed to operate only at the level
allowed by the lower-energy Battery Pack.
Redundancy is a critical safety feature built into the
Segway HT. This applies to the Battery Packs.
Therefore, you should replace Battery Packs in pairs
(except for the unusual situation where a Battery Pack
is replaced because of damage or defect and the other
Battery Pack is relatively new).
See instructions for removing and installing Battery
Packs, beginning on page 39.
(green)
If the Battery Packs are too hot or
too cold while riding, the Segway HT
will reduce performance (see
page 34). The Display will show the
reduced performance icon. (Note
that the face is not smiling.)
(red)