Bose recalls 634,000 battery packs for S1 Pro speakers after reports of overheating and fire

Bose Corporation is recalling approximately 634,759 lithium-ion battery packs sold in the United States for its S1 Pro and S1 Pro+ portable Bluetooth speaker systems, warning that the packs can overheat and ignite. The recall, announced November 5 in cooperation with the U.S. Consumer Product Safety Commission, also covers roughly 35,400 of the same packs sold in Canada.

The affected battery packs were sold two ways: built into complete S1 Pro and S1 Pro+ speaker systems, and separately, as stand-alone accessories or replacement batteries for owners whose speakers originally shipped without one. They reached shoppers through Bose's own stores and website, Best Buy, and online retailers including Amazon and Walmart, from December 2017 through July 2026. A standalone pack sold for $100 to $160; a full speaker system bundled with one ran about $700, according to the CPSC's recall notice. The packs were manufactured in China.

What triggered the recall

Bose says it has received seven reports of battery packs melting, producing smoke or catching fire, six of which caused property damage. No injuries have been reported to date. That is a modest incident count against more than 670,000 units in circulation across two countries, but lithium-ion battery failures are rare events by design, and regulators tend to act quickly once a pattern of thermal incidents emerges rather than waiting for injuries to accumulate.

There have been seven reports of the battery packs melting, producing smoke or catching fire, including six reports of property damage. No injuries have been reported.

The recall was processed through the CPSC's Fast Track Recall Program, a mechanism that lets manufacturers who move quickly on a voluntary recall avoid a lengthier agency investigation. Fast Track recalls are initiated by the company itself, not imposed by the government, though CPSC still reviews and co-announces them.

How to tell if a speaker is affected

Identifying an affected pack requires checking a 17-digit serial number printed on a label underneath the barcode on the battery itself, not the separate serial number printed on the speaker body. According to Bose's recall support page, a pack is included in the recall if its serial number begins with one of seven six-digit prefixes: 083723, 078352, 084105, 078591, 078592, 084106 or 086409. To check, owners power off and unplug the speaker, loosen two screws on the bottom plate, and pull the battery free by its tabs.

Owners of an affected pack are told to stop using it immediately and remove it from the speaker. Bose notes the speaker itself is not part of the recall and can keep running normally while plugged into AC power with the battery pack removed, only cordless, battery-powered use is affected. A free replacement pack can be requested by submitting the battery's serial number through Bose's online repair-and-replacement portal, linked from its recall site; the company says online requests are not available in every region, in which case customers are directed to call its support line.

• Recalled packs should not go in household trash, curbside recycling bins, or retail battery take-back boxes.
• Owners are instructed to contact a local household hazardous waste program before disposing of a pack, since not every facility accepts recalled lithium-ion batteries.
• Bose can be reached at 800-278-1083, Monday through Friday from 9 a.m. to 9 p.m. Eastern and Saturday from 9 a.m. to 7 p.m. Eastern.

Who is affected, and what comes next

The S1 Pro line is one of Bose's best-known portable products, marketed to musicians, DJs, wedding and event vendors, and small businesses that need a self-contained, battery-capable PA system rather than a traditional home speaker. That commercial use means a meaningful share of the recalled units are likely in active, frequent use rather than sitting idle, which can accelerate battery wear in ways the company's seven-incident count may not yet fully reflect if additional reports surface as awareness of the recall spreads.

Consumer-safety trackers typically watch the weeks immediately following a Fast Track announcement for a second wave of incident reports, since recalls often surface complaints that consumers previously chalked up to normal wear or didn't think to report to the manufacturer or to CPSC's public incident database at SaferProducts.gov. The agency's own count of seven incidents reflects only what Bose had logged as of the recall's filing.

For now, Bose's instructions are unambiguous: anyone with a battery pack matching the listed serial-number prefixes should stop charging or using it, separate it from the speaker, and request a replacement rather than attempt a repair or continue use on battery power. The company has not said how long replacement fulfillment is expected to take. The CPSC recall notice carries recall number 27-065 for consumers who want to reference the case when contacting either the agency's hotline at 800-638-2772 or Bose directly.