Have you considered the Onyx Studio 9? I’ve had a Studio 2 for years and it still sounds great. The Go+3 is a great choice too - poor battery life though. If you’re leaving it plugged in, it shouldn’t be a problem. My Studio 2 has no battery left but it still works fine as long as it’s powered.
Soundcore motion boom is really good value, sounds decent and has a big battery. I wouldn't leave anything permanently on charge though. Onyx series of speakers can run either plugged in to their adapter or just of their (tiny) battery - at least the 2nd gen one which is what I have. I find it a bit too bass heavy fatiguing sound though, more so plugged in as the bass is boosted more running from the adapter. I have an IKEA bt speaker from a few years ago that either runs off the mains or battery pack, they may have a more modern equivalent. It sounded decent but not outstanding, although probably most of what you get of a decent size these days is probably going to be night and day compared to what he's got now.
Harmon Kardon Onyx Studio the original one. Bought mine 2013 refurbished on eBay and it’s still going. Bought a replacement battery and it was super easy to replace.
deepsighguy
