A:Answer Hi SKMerganser, thank you for your question. The speaker comes with a USB Type-C® cable only. You can purchase a commercially-available USB AC adaptor capable of delivering an output current of 1.5 A or 3.0 A. It is also safe to leave it plugged because charging stops when the Li-ion battery is full. A topping charge is only applied when the battery voltage drops to a certain level.
To maximize battery life, however, it is better to not keep it plugged in. Environmental conditions, not cycling alone, govern the longevity of lithium-ion batteries.
Do not charge in conditions too cold or too warm (below 41F or above 95F)
When not in use, keep the device stored in a cool place, partially charged.
Operating condition between 30 and 80 percent maximizes battery life.
Lithium-Ion batteries have no memory and are not degraded with partial discharges.
The worst situation is keeping a fully charged battery at elevated temperatures.
The XG300 speaker is perfect for bringing a big sound to a portable party. Whether you’re at home or at the beach, park or poolside, this speaker will give you a great sound even at high volume, and will have enough battery life to keep going as long as you do. And, with a comfortable retractable handle, when you’re ready, just grab it and go.
Hope this helps.
Erin
