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== Battery tests ==
 
== Battery tests ==
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The amount of time the device will work from internal battery depends on the battery health, how often the device saves/sends information to the server, external peripherals connected to the device and the results may also differ depending on firmware used.
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For general comparison purpose, and to see what results can be achieved, you can refer to the following internal test results in different modes and sending frequencies:
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<br>
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<table class="nd-othertables" style="width: 100%;">
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<tr>
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        <th style="width: 10%; text-align:center; vertical-align:middle; color: black">Mode:</th>
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        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Min Period (data saving frequency)</th>
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        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Send Period (data sending frequency)</th>
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        <th style="width: 15%; text-align:center; vertical-align:middle; color: black">Starting Voltage</th>
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        <th style="width: 15%; text-align:center; vertical-align:middle; color: black">Cut off Voltage</th>
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        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Time achieved</th>
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    </tr>
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        <tr>
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        <td style="vertical-align:middle">Operating</td>
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        <td>  10 seconds</td>
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        <td>  60 seconds</td>
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        <td>10,1V</td>
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        <td>7,6V</td>
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        <td>438 min (7 hours 18 minutes)</td>
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    </tr>
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        <tr>
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        <td style="vertical-align:middle">Operating</td>
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        <td>60 seconds</td>
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        <td>60 seconds</td>
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        <td>10,5V</td>
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        <td>7,6V</td>
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        <td>506 min (8 hours 26 minutes)</td>
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    </tr>
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        <tr>
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        <td style="vertical-align:middle">Deep Sleep</td>
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        <td>12 hours</td>
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        <td>12 hours</td>
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        <td>10,2V</td>
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        <td>8,2V</td>
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        <td>5040 min (84 hours 0 minutes)</td>
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    </tr>
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        <tr>
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        <td style="vertical-align:middle">Online Deep Sleep</td>
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        <td>12 hours</td>
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        <td>12 hours</td>
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        <td>10,1V</td>
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        <td>8,0V</td>
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        <td>2160 min (36 hours 0 minutes)</td>
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    </tr>
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</tr></table>
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<br>
 
{{Template:FMB640_Electrical_characteristics}}
 
{{Template:FMB640_Electrical_characteristics}}
 
[[Category:FMM640 Manual]]
 
[[Category:FMM640 Manual]]

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