EXFO FPM-600 Power Meter - Manual (Page 58)

Maintenance
52 FPM/FLS/FOT-600
Recharging and Replacing the Battery
Recharging and Replacing the Battery
The Li-Ion battery will last about 70 hours (power meter) or 50 hours
(source in Auto mode) in normal operation. The charge status is shown on
the unit display (lower left corner).
Note: Charging your unit’s battery can take up to 5 hours. This battery was
custom-made for your unit; replacement batteries must be purchased from
EXFO.
To recharge the Li-Ion battery:
Connect the unit to a power outlet (or car outlet) using the AC
adapter/charger. The charge cycle will start and end automatically.
Note: While charging, the battery indicator animates continuously. It does not
reflect the actual charge status until charging is complete.
I
MPORTANT

The battery is not charged at the factory. Fully charge it (about
4 hours) before using it for the first time.

The battery functions and charges properly between 0 oC and
45 oC (32 oF and 113 oF). It will not charge if the temperature is
below -10 oC (14 oF) or above 45 oC (113 oF).

Never store battery at temperatures above 60 oC (140 oF).

Charge only with specified charger.