How long does the JBL Charge 5 battery take to fully charge?
The JBL Charge 5 battery takes 4 hours to fully charge at 5V/3A. The power delivered by the charger should be between a minimum of 7.5 Watts and a maximum of 15 Watts to achieve the maximum charging speed. When using an external adapter, the output voltage/current should not exceed 5V/3A. (Page 1-2)
From the official Jbl Jbl Charge 5 manual, page 1
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