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Bose S1 Pro Portable Bluetooth® Speaker System

Sold from 2018 – present

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Charging the battery

Find out how to charge the battery in your product so you can use it on the go.

To charge the battery:

Regular charging

When the battery is attached and the system is connected to power, the battery charges. A full charge can take up to 5 hours.

Quick Charge mode:

When the system is not in use, set the power switch to the down position to enable Quick Charge. In this mode, a full charge can take up to 3 hours.

Note: The battery charges to 97% in up to 3 or 5 hours (depending on the charge mode). To prolong the life of the battery, the remaining 3% is a slow trickle charge, which can result in the charging light flashing for up to 12 hours. Additionally, extreme temperatures can slow charge time.

Plugging in overnight will not overcharge the battery

Lithium batteries have a built-in auto-off feature when a full charge is reached to prevent the battery from being overcharged. Even while still plugged in, the battery level will have to drop below a certain point to trigger the charging again.
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