EXFO FTB-2 - Manual (Page 267)

Maintenance
FTB-2 and FTB-2 Pro 257
Recharging the Batteries
Recharging the Batteries
Your unit uses smart lithium-ion (Li-Ion) batteries. The number of batteries
that power your unit and that come with it depends on the model that you
have purchased.
The table below gives detailed information.

The charge status is shown in the taskbar (at the left of the clock).
Simply tap the battery icon for more information.

The unit also indicates the charge status with the LED on its front panel
(see LED Indicators Description on page 6).
Model
Number of batteries
that power the unit
Number of batteries
provided with the unit
FTB-2 1
Battery must be inserted
in the first battery slot
(use the markings at the
back of the unit to guide
you). The second
battery slot does not
power the unit. It only
serves as storage for an
extra battery that you
would swap in the first
battery slot when
required.
1
You can purchase an extra
battery and store it in the
second battery slot.
FTB-2 Pro 2 2
C
AUTION
Only charge the batteries with the AC adapter/charger provided by
EXFO with your unit.