Changhong outdoor square dance audio charging charge how long to full

This depends on the type of battery in your speaker, and secondly, it also depends on the capacity of your battery, the general 12-inch square dance speakers have a battery capacity of about 4.5 amps, if it is a lithium battery, it can be filled in 4-6 hours in general, if it is a lead-acid battery, it takes about 10-12 hours to be full.