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The battery life of JBLâs Clip is advertised as 5 hours. I found it to last a little less than that in my usage, but it does entirely depend on what volume level youâre using the Clip at. You can charge the Clip in less than 2 hours via USB (or much quicker using a mains adapter, not provided).
Further, if you want to calculate how long it will take for your. charger, the equation is mah/amps*.06 =. minutes to charge. For a 4500mah battery with 2 amp charger., 4500/2 * .06 = 135 minutes to charge. The reason standard data usb ports are also used (insread of making all usb ports charging-capable) is noise.