Siemens S6 GSM Service Manual page 24

Private communication systems mobile phones
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Short Circuit Protection
The battery is short-circuit protected by an electronic fuse.
The resetting of the fuse can be done by the following procedures:
* Plug the battery into the desktop charger.
or
* Apply +5 Volts between the BATT+ and GND contacts (see drawing!)
Limit the current to 10mA.
Deep Discharge
If the battery is deeply discharged it can be recharged by the following procedure:
Insert flat battery into handset and connect travel charger. The charging symbol will
not be visible. Wait for appr. 1 hour and disconnect charger afterwards.
Remove battery and reinsert it. If you connect the travel charger now, the charging
symbol must be visible on the handset display.
Battery Datecodes
The datecode printed on the battery will give you the following information:
Example: TOS 8 G9 VA 1
TOS = Cells supplied by Toshiba
8
= Revision level
G9
= Datecode
VA
= Varta (battery manufacturer)
1
= Place of manufacturing (1=Germany ,2= Novibor, Czech Republic)
Datecode:
1. Character: Year of production (F= 1995, G= 1996)
2. Character: Month of production
(1-9 means January to September; O=October; N=November ; D=December)
From february of 1997 on, Varta is going to adapt its datecoding according to
industrial standard DIN EN 60062.
This means that the character indicating the year 1997 will be a „J"
Example:
TOS 8 J2 VA 1
V1.3
This battery was produced in february of 1997!
24
Private Communication Systems
Mobile Phones
PN MP ST
D. Schnoor
10/97

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