https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL20662_%E2%80%93_UPS_Power_Module_%28B%29%2FenWSAL20662 – UPS Power Module (B)/en - Versionsgeschichte2026-10-23T21:38:21ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL20662_%E2%80%93_UPS_Power_Module_(B)/en&diff=1170&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:14:36Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
The Waveshare UPS Power Module (B) is an uninterruptible power supply with a 5 V output and up to 5 A continuous current, connecting to the Jetson Nano via pogo pins. Batteries are not included.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL20662 WSAL20662 – Uninterruptible Power Supply UPS Module (B) for Jetson Nano, 5V Output, up to 5A Current, Pogo Pins Connector]<br />
* [https://shop.jw-tech.eu/p/WSAL20663 WSAL20663 – Uninterruptible Power Supply UPS Module (B) for Jetson Nano, 5V Output, up to 5A Current, Pogo Pins Connector]<br />
* [https://shop.jw-tech.eu/p/WSAL24734 WSAL24734 – Uninterruptible Power Supply UPS Module (B) for Jetson Nano, 5V Output, up to 5A Current, Pogo Pins Connector]<br />
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== Technical overview ==<br />
* Output voltage: 5 V; charger: 8.4 V / 2 A; control bus: I2C<br />
* Supports 18650 Li batteries (not included); capacity: 4 battery slots<br />
* Dimensions: 100 mm × 79 mm; mounting hole pattern: 2.5 mm<br />
* I2C bus for real-time monitoring of battery voltage, current, power, and remaining capacity<br />
* Multiple battery protection circuits: overcharge/over-discharge, overcurrent, short-circuit, reverse-polarity protection, plus equalizing charge<br />
* Onboard 5 V regulator with up to 5 A continuous output current<br />
* Battery warning LEDs indicate whether each battery is connected correctly<br />
* Connects to the Jetson Nano via pogo pins; set the power switch to OFF before installing batteries<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo apt-get install python3-smbus<br />
wget https://files.waveshare.com/upload/a/a2/UPS_Power_Module_B.zip<br />
unzip UPS_Power_Module_B.zip<br />
cd UPS_Power_Module_B<br />
python3 INA219.py<br />
</syntaxhighlight><br />
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== Notes and version constraints ==<br />
* After first installation or replacement of the batteries, press the boot button to activate the circuit<br />
* A negative current reading means the batteries are discharging; a positive reading means they are charging<br />
* Sustained operation at 5 A causes heating; no more than 4 A is recommended for long-term use<br />
* Use only the supplied charger; other sources may damage the module due to excessive ripple<br />
* If a battery is connected in reverse, the warning LED lights up; charging in this state is prohibited<br />
* Standby duration is approximately 10–12 hours; a full charge from empty takes about 4 hours<br />
* Li-ion batteries have limited cycle life and should be replaced after reaching maximum cycles or two years, whichever comes first<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/UPS_Power_Module_(B) UPS Power Module (B) - Waveshare Wiki]<br />
* Source revision: 67577<br />
* Captured: 2026-09-02T04:09:52+00:00<br />
* SHA-256: <code>f31c35005f04fbf7b1d1f7d49551cade8801edbff81532ce061d25f83e714d54</code></div>JWTechPublisher