Power Sources - EXFO Optical Power Expert User Manual

Introducing the PX1 Optical Power Expert

Power Sources

Power Sources
The Optical Power Expert operates with the following power sources:
Indoor use only: USB power adapter connected to a power outlet
(fastest way to charge the battery).
Note: The standard USB ports of a computer can power your unit or charge its
battery, but it will be slower than if you are using the adapter.
Note: If you have a vehicle equipped with dedicated USB charging ports, you
could connect your unit to one of these ports to charge the battery. The
actual results will vary with each vehicle. You could also use a certified USB
power bank (portable charger) to charge your unit.
Indoor and outdoor use: One lithium-ion (Li-ion) or one
lithium-polymer (Li-Po) rechargeable battery (main battery that
automatically takes over if you disconnect the unit from its external
power source). You can switch from an external power source to
battery power or vice versa without affecting operation. The real-time
clock is also powered by the battery; should the unit be fully
discharged however, the real-time clock will retain the date and time
values for a few days (typically a little over a week) until you recharge it
again.
Note: You can replace the main battery yourself (see Replacing the Battery on
page 52), but this will reset the real-time clock.
Note: When the ambient temperature is below 0 °C (32 °F) or when it reaches or
exceeds about 45 °C (113°F), the main battery can either charge more
slowly than usual, or not charge at all, depending on the internal
temperature of your unit.
For more information, see Electrical Safety Information on page 13.
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PX1