MI 3205 TeraOhm XA 5kV Safety and operational considerations
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2.2 Battery and charging of Li-ion battery pack
The instrument is designed to be powered by rechargeable Li-ion battery pack or with
mains supply. The LCD contains an indication of battery condition and the power source
(upper left section of LCD). In case the battery is too weak the instrument indicates this
as shown in Figure 2.1.
Symbol:
Indication of low battery.
Figure 2.1: Battery test
The battery is charged whenever the power supply is connected to the instrument. The
power supply socket is shown in Figure 2.2. Internal circuit controls (CC, CV) charging
and assures maximum battery lifetime. Nominal operating time is declared for battery
with nominal capacity of 4.4 Ah.
Figure 2.2: Power supply socket (C7)
The instrument automatically recognizes the connected power supply and begins
charging.
Symbol:
Indication of battery charging
Figure 2.3: Charging indication
Battery and charging characteristic Typical
Battery type VB 18650
Charging mode CC / CV
Nominal voltage 14,8 V
Rated capacity 4,4 Ah
Max charging voltage 16,7 V
Max charging current 1,2 A
Max discharge current 2,5 A
Typical charging time 4 hours
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