9
5.5 Battery operation and care
The battery in your
CompactMobile
2
is a high-end
leakproof and maintenance-free lead-gel-battery.
It‘s high capacity will be available for a long time if
you follow some precautionary measures.
1. Charging
To charge the battery, plug your AER
CompactMo-
bile
2
to the mains and switch it on. If you do not
want to use the amplifier during the charging pro-
cess, turn
gain-
and
master-
control to minimum vo-
lume (as far left as possible).
The charging of the batteries will be indicated by
the yellow
charge-
LED. The battery is fully charged
when the
charge-
LED is off. Charging time depends
on various factors and can vary according to the
battery’s charging state at the beginning of the pro-
cess.
A partly discharged battery will be charged comple-
tely after a few hours whereas the charging process
of a completely discharged battery can last more
than 24 hours. The average charging-time of a con-
tinually discharged battery will take about 8 to 14
hours. By constantly controlling the battery’s vol-
tage, the intelligent charge control electronics pre-
vents the battery from overcharge.
2. Operation
A completely charged battery allows 2 to 4 hours of
playing independent of mains supply, depending
on volume and dynamics. Low volume will enable
you to play up to 8 hours. The
low-battery-
LED indi-
cates that the battery is almost empty.
As soon as the minimal allowed battery voltage has
been reached, the charge control electronics will
automatically switch the AER
CompactMobile
2
off,
in order to avoid deep-discharge. After the amplifier
has been switched off by the charge control elect-
ronics it can only be operated when connected to
the mains. A discharged battery should be charged
as soon as possible. Storage in discharged condition
may damage the battery.
3. Storage and self-discharge
If your AER
CompactMobile
2
is stored or not used
over a long period, the battery should be fully char-
ged in order to keep it‘s capacity. Being switched off
for a long time with discharged battery may damage
the battery irreparably by natural self-discharge.
During normal use, the charge control electronics
can protect the battery from deep-discharge, but
it cannot prevent the electronical process of self-
discharge in the battery itself.
Always store your AER
CompactMobile
2
with char-
ged battery. A fully charged lead-gel-battery will
still be 60% charged after one year of storage whilst
a discharged battery might be damaged even after
a few weeks.
4. Temperature Dependency
Please note that the battery’s capacity (and thus
playing time) depends on the surrounding tempe-
rature. Playing outside in winter will reduce playing
time by 20 to 30% compared to playing in heated
rooms or outside in summer. This is a normal reac-
tion and not a sign of a defective battery.
5. Battery Life Expectancy
The producer of the batteries used in the AER
Com-
pactMobile
2
declares a life period of approximately
5 years at intended use.
6. Warranty
Batteries are items that wear out through the or-
dinary course of use, thus they are excluded from
statuary two-year liability. If a defect has not been
caused by AER manufacture, warranty will expire af-
ter 6 months.
7. Battery Exchange
The exchange of worn out batteries should be car-
ried out by a specialist or by AER Service as both
amplifier and new battery could be severely dama-
ged through improper connecting or assembly. Im-
proper connection may cause explosion or electric
shock.
PB
