Hi there , just wondering if the sound quality different when you put 18v batteryor 40v battery in ? Thanks .

Will it charge the battery at the same time while playing music

Signal FM is enough good? Makita has problem with this.

mine has shit sound on rock vol over 20 speaker distortion and cant bear to turn it up .only buy if you like quiet music with no base !!!! makita said its fine ??? obviously the apprentice tested it who is tone deaf !!