TDT RZ2 Manual page 332

7-18
The LZ48 has three batteries to both drive the stimulation and power the IZ2
stimulator logic circuitry. A 24 Volt battery charger with 2.7A of current capacity is
included with the stimulator and can be connected via the connector on the LZ48's
back panel. The charger tip is center negative. If it is necessary to replace the
charger, ensure that the power supply has the correct polarity.
Battery Capacity
Rechargeable
Compliance Voltage
Maximum Impedance for a 300
microAmp Current
Ambient Temperature
LZ48 Status LEDs
V : Positive Battery Pole
A
V : Negative Battery Pole
B
V : Logic Battery Level
C
Eight LEDs indicate the voltage level of the currently displayed battery. When the
battery is fully charged, all eight LEDs will be lit green. When the battery voltage is
low, only one green LED will be lit. If the voltage drops further, the last LED will
flash red. TDT recommends charging the battery before this flashing low-voltage
indicator comes on. While charging, the Status LEDs will flash.
LZ48 Battery Pack
The LZ48 Battery Pack uses multiple Lithium Polymer (LiPoly) batteries.
cause damage to the device and injury to the user. Always use caution when
handling or connecting the devices.
Important! Used LiPoly batteries must be recycled.
IZ2/IZ2H Stimulator
Status
8 Green
1 Green, 7 Unlit
1 Flashing Red
8 Green Flashing
WARNING! Just as with all batteries, shorting the LZ48 Battery Pack can
LZ48-200
200 Wh
Yes
+/- 15V
50 kOhms
Normal room temperatures
Description
Fully Charged
Low Voltage
Low Voltage - Charge Immediately!
Charging in Progress
System 3
LZ48-400
400 Wh
Yes
+/- 15V
50 kOhms
Normal room temperatures