Low voltage/Warm nightlight

vio765 · Apr 9, 2010

I have a Xantrex Powersource Mobile 100 and I just got this cool little nightlight that draws about 10mAh. I plugged it in and it worked! But after about 10 minutes the little nightnight was really warm around the base (where it plugs into the Xantrex unit). I tested its voltage and it was 118.5VAC. I put the nightlight into a normal outlet, waited 10 minutes, and felt the base. Cool to the touch. The outlets voltage was 122.7VAC. Why is this happening? Thanks!

cistallus · Apr 10, 2010

The power converter's specs say it puts out a "modified sine wave". That could mean anything. The circuitry in some devices will work inefficiently on a poor AC waveform, this could be the case with your nighlight, causing heating.

vio765 · Apr 10, 2010

This isn't the first time the Xantrex has done this. I got a sweet little LED light bulb from Mal-Wart for only $4 that ran at 1w. After about 10 minutes, the light stopped working. Purchased another LED lamp, repeated, and that one went out too! I will occasionally charge 18650 cells with the WF-139 charger with the Xantrex. Now I am worried about my 18650 cells.

Low voltage/Warm nightlight

vio765

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cistallus

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vio765

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