Why does this device show reverse polarity when plugged into AC power to charge? Does this affect pass-through charging and the UPS?

The device showing reverse polarity when plugged into AC power could indicate an issue with the electrical outlet, the wiring of the plug, or the device's internal circuitry. Reverse polarity occurs when the hot and neutral wires are incorrectly connected, which can be dangerous and cause improper operation of the device.

This issue can indeed affect pass-through charging and the UPS (Uninterruptible Power Supply) function. Reverse polarity can disrupt the normal flow of electricity, potentially causing the device to malfunction or fail to operate as intended. It’s important to address this issue immediately by checking the outlet's wiring or using a different outlet. If the problem persists, consult a qualified electrician or contact the device manufacturer for further assistance.

Do not continue using the device with reverse polarity, as it could cause damage or pose a safety hazard. If the output is connected to a distribution box, it will be affected, but the input will not be affected. Please confirm your wiring method.