Nowadays, most portable speaker manufacturers no longer include a full set of chargers in their products. While this cuts costs, they often fail to tell users a crucial rule: never use random chargers.
You must choose a charger that matches your speaker’s input voltage and current. Many users ignore this and use incompatible chargers (like fast-charging ones). The consequences? At best, your speaker may develop hidden issues after some use; at worst, it could short-circuit and burn out completely.
For reference, most portable Bluetooth speakers on the market require a 5V/2A charger. Only a small number of brands specify fast chargers. Always check your speaker’s manual first – don’t let a wrong charger turn your device into junk!