Also I found in Ebay some batteries replacement of 3.7V and 3000mah, but you will need to assembly the battery pack , that will need some electronic knowledge, but I think is not really hard to do.
Thanks, it was clear and very help full, fortunately for me it was a solder defect on battery PCB, I just refresh the solder joint with new solder and the speaker works perfectly.
Lorsqu'il en aura reçu, il pourra afficher un graphique de sa réputation au fil du temps.
Voici un aperçu de ce à quoi ressemble ce graphique :
Aucun point de réputation obtenu pour l'instant.