Low Battery Indication - Vertex Standard VX-820 Series Operation Manual

1) The VAC-920 (CD-31/PA-42) charges only
the Vertex Standard FNB-V86LIA, FNB-
V87LIA, FNB-V92LI, and FNB-V92LIIS Lithium-
Ion Battery Pack.
2) If the IS version of the VX-820 is being used in a
hazardous environment where Intrinsic Safety (IS)
is required you must use the FNB-V92LIIS battery.
3) Use only the Vertex Standard PA-42 AC Adapter.
4) To reduce the risk of explosion, recharge the bat-
teries outside of hazardous locations.
5) Perform the battery charging where the ambient
temperature range +41 °F to +104 °F (+5 °C to +40
°C). Charge out of this range could cause damage to
the battery pack.
6) Battery Pack shall not be exposed to excessive
heat such as sunshine, fire, or the like.
7) Risk of explosion if battery is replaced by an in-
correct type. Dispose of used batteries according to
the instructions.
VX-820 S O
erieS perating
B y
efore
M
anual
B
ou egin

Low Battery Indication

As the battery discharges during use, the voltage
gradually becomes lower. When the battery voltage
becomes to low, substitute a freshly charged battery
and recharge the depleted pack. The LED indicator
on the top of the radio will blink red when the battery
voltage is low.
Caution
Danger of explosion if battery is replaced with
an incorrect battery. Replace only with the
same or equivalent type.
The FBA-34 was designed as a backup bat-
tery pack, and it can be used to power the
transceiver if you are in an area that does not
require the use of an intrinsically safe radio.
Note
17