Falcom GmbH STEPPII-56 Manual Do Utilizador

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STEPP II HARDWARE DESCRIPTION VERSION 
1.01 
 
The internal resistance of the battery and the protection should be as low 
as possible. It is recommended not to exceed 150 mΩ, even in extreme 
conditions at low temperature. The battery cell must be insensitive to 
rupture, fire and gassing under extreme conditions of temperature and 
charging (voltage, current). 
 
The contacts of battery pack must be protected from short circuits. For 
example, use rubber-band or cable isolation on the contacted parts to 
prevent short circuits. 
 
The battery pack must be approved to satisfy the requirements of CE 
conformity. 
The circuit diagram below shows how to connect a Li-Ion battery to the STEPP 
II terminal. The charging/discharging process is implemented internally. The 
charging process take place only if the operating voltage is applied. If the 
STEPP II is not in use for a long time (e.g. warehouse) this pin (VBAT+) can 
be left open (remove the battery).   
Warning ! The battery circuit is not protected from reverse pole connection. 
To prevent the mounting of battery in reverse polarity, mount it 
before the power supply is applied to the terminal. Then check 
again the connected wires from STEPP II to external user battery 
pack. If they are properly connected, supply the terminal with 
external power (i.e. car battery). Otherwise, if battery will be 
mounted with reverse pole while the operating voltage (V
VC+
) is 
applied to the terminal, some on-board electronic components of 
terminal can be damaged
.  
!!! Take care not to connect the battery with the wrong polarity. 
Caution:   1) Please, keep in mind that the pin (VBAT+) has in no case to be 
connected neither to the operating voltage (V
VC+
) pin nor to the 
GND pin. 
2) Charging process can only be accomplished in a temperature 
range from 0 °C to +40 °C, typically 15 to 25 °C. 
The extreme temperatures have an unfavourable influence on 
the rechargeable batteries. The capacity and life cycle of the 
batteries are reduced if they are kept at cold or warm places, 
e.g. in a closed car at summer or winter conditions. Try always 
to keep the connected battery (STEPP II) at normal 
temperatures between 15 °C and 25 °C. 
 
Figure 10:  VBAT+ connection example 
This confidential document is a property of FALCOM GmbH and may not be copied or circulated without previous permission. 
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