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Is it going to start a fire no! Is it going to blow up no! There are no adverse safety concerns with keeping the speaker plugged in all the time. However, it will be bad for the built-in lithium ion battery. Don’t forget these are portable speakers they are meant to be picked up and moved around. The internal lithium ion battery needs to be cycled periodically in order for it to maintain its ability to charge and its overall health. If you choose to keep a plugged in all the time at least once a month take it off of the charger. Let the battery run down to 20% and then plug it back in.
Sorry, there was a problem. Please try again later.Hi there! Thank you for your inquiry! Plugging the speaker in overnight will not overcharge the battery, as it’s designed to stop charging once full. However, while it may seem harmless, frequently leaving your speaker connected to the charger for extended periods can gradually affect the battery’s overall performance and lifespan over time. To maintain optimal battery health, it's best to unplug the speaker once it's fully charged. Jelyn - Bose Customer Support
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