Notes: Attempt at Mains Noise Suppression (ft. ALLPOWERS VOLIX P300 Power Station)

A while back, I was lured in by the discounts offered by AliExpress, ending up with two ALLPOWERS VOLIX P300 Power Stations. While sporadic bench testing seemed to show them working just fine, it seems that the solar sharer offer and regular use have begun to expose some “cracks”. One of my two stations refuses to consistently charge quickly, falling back to about 82W charging rate for the majority of the time. Along with a comment from a reader indicating the USB outputs likely have high ripple, I’m no longer as impressed with them anymore. But since I have them, I might as well run them while they’re still under warranty. But perhaps, the biggest issue, is one of Electromagnetic Interference (EMI). This is something we often take for granted – that our electronics simply work and don’t interfere with one another. But the VOLIX P300 proved to be an interesting exception. A couple of weeks after I put the stations into regular every-day service, my Dad reached out to me to ask about…