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How to Calculate Battery Voltage into Percentage for Mictrack Devices

Some of the Mictrack tracking devices will report the GPS data with backup battery voltage, when you integrate them with your cloud server and want to calculate battery voltage into percentages, this post will help you.

MT700

Rechargeable version

For the MT700/MT700-W, the battery info is as follows:

≥4.2V: 100% battery level.
≤3.4V: Low battery alert (report BLP status to server)
≤3.3V: 3%-5% (the device will shut down, on the server also can think it is 0%)

Battery Voltage (V)Percentage (%)
4.2100
4.189
4.078
3.967
3.856
3.744
3.633
3.522
3.411
3.30
The reference table for MT700/MT700-W

In the original GPS data if the battery is “40” it means “4.0V”.

Non-rechageable version

For MT700-N/MT700-NW, the battery info is as follows:

≥4.5V: 100% battery level.
≤3.6V: 3%-5% (the device will shut down, on the server also can think it is 0%)

Battery Voltage (V)Percentage (%)
≥4.5100
4.489
4.378
4.267
4.156
4.044
3.933
3.822
3.711
3.60
The reference table for MT700-N/MT700-NW

1. This table is based on the Energizer L91
2. In the original GPS data if the battery is “40” it means “4.0V”.

MT710

For the MT710, the battery info is as follows:

≥4.2V: 100% battery level.
≤3.4V: Low battery alert (report BLP status to server)
≤3.3V: 3%-5% (the device will shut down, on the server also can think it is 0%)

Battery Voltage (V)Percentage (%)
4.2100
4.189
4.078
3.967
3.856
3.744
3.633
3.522
3.411
3.30
The reference table for MT710

In the original GPS data if the battery is “40” it means “4.0V”.

MT825

For the MT825, the battery info is as follows:

≥4.152V: 100% battery level.
≤3.650V: Low battery alert (report low battery status to server)
≤3.502V: 3%-5% (the device will shut down, on the server also can think it is 0%)

Battery Voltage (V)Percentage (%)
4.152100
4.10995
4.06290
4.02385
3.97680
3.93375
3.90370
3.86965
3.82760
3.79455
3.74450
3.75145
3.74440
3.71835
3.71330
3.69625
3.68920
3.66815
3.63410
3.5020
The reference table for MT825

In the original GPS data if the battery is “3650” it means “3.650V”.

Updated on December 17, 2022

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