Aeroflex 3500A, Maintenance Manual, Page: 28 / 169

2-4
S u b j e c t t o E x p o r t C o n t r o l , s e e C o v e r P a g e f o r d e t a i l s .
2-2-5. BATTERY PRECAUTIONS
The Test Set is powered by an internal Lithium Ion battery pack. The Test Set is supplied with an
external DC Power Supply that enables the operator to recharge the battery when connected to AC
power. The Test Set can operate continuously on AC power via the DC Power Supply, for servicing
and/or bench tests.
The internal battery is equipped to power the Test Set for eight hours of continuous use, after which
time, the Test Set battery needs recharging. When the POWER Indicator is GREEN, the battery is at
>25% capacity. When the POWER Indicator is YELLOW, the battery is at <25% capacity.
The battery charger operates whenever DC power (11 to 32 Vdc) is applied to the Test Set with the
supplied DC Power Supply or a suitable DC power s ource. When charging, the battery reaches an
100% charge in approximately four hours. The internal battery charger allows the battery to charge
between a temperature range of 5
°
to 40
°
C. The Test Set can operate, connected to an external DC
source, outside the battery charging temperature range (5 ° to 40 ° C).
The battery should be charged every three months (minimum) or disconnected for long term inactive
storage periods of more than six months. The Battery must be removed when conditions surrounding
the Test Set are <-20
°
C or >60
°
C)