Figure 13: Rtc Supply From Non-Chargeable Battery - SimCom SIM802 HD Manual

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SIM802 Hardware Design

Figure 13: RTC supply from non-chargeable battery

Figure 14: RTC supply from rechargeable battery
Figure 15: RTC supply from capacitor
Li-battery backup
40
SIM802_HD_V2.01
12.01.2010

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