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AC75 Hardware Interface Description
Strictly confidential / Preliminary
Table 8: Specifications of battery packs suitable for use with AC75
Battery type
Nominal voltage
Capacity
NTC
Overcharge detection voltage
Overdischarge detection voltage
Overcurrent detection
Overcurrent detection delay time
Short detection delay time
Internal resistance
3.5.4 Batteries Recommended for Use with AC75
When you choose a battery for your AC75 application you can take advantage of one of the
following two batteries offered by VARTA Microbattery GmbH. Both batteries meet all
requirements listed above. They have been thoroughly tested by Siemens, proved to be
suited for AC75, and are CE approved.
•
LIP 633450A1B PCM.STB, type Lithium Ion
This battery is listed in the standard product range of VARTA. It is incorporated in a
shrink sleeve and has been chosen for integration into the reference setup submitted for
Type Approval of Siemens GSM modules.
•
PLF 503759C PCM.NTC.LT50, type PoLiFlex® Lithium Polymer
This battery has been especially designed by VARTA for use with electronic applications
like mobile phones, PDAs, MP3 players, security and telematic devices. It has the same
properties as the above Li-Ion battery, except that it is type Polymer, is smaller, lighter
and comes without casing.
Specifications, construction drawings and sales contacts for both VARTA batteries can be
found in Section 9.3.
AC75_HD_V00.202
Rechargeable Lithium Ion or Lithium Polymer battery
3.6V / 3.7V
Recommended: 1000mAh to 1200mAh
Minimum: 500mAh
10kΩ ± 5% @ 25°C
approx. 5kΩ @ 45°C
approx. 26.2kΩ @ 0°C
B value range: B (25/85)=3423K to B =3435K ± 3%
4.325 ± 0.025V
2.5 ± 0.05V
3 ± 0.5A
4 ~ 16ms
50µs
<130mΩ
Note: A maximum internal resistance of 150mΩ should not
be exceeded even after 500 cycles and under extreme
conditions.
Page 43 of 120
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27.04.2006
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