The U.S. Consumer Product Safety Commission recalled Trianium battery phone cases on October 7, 2020, under recall number 21-003. Endliss Technology Inc. of Hayward, California imported the cases. Endliss sold them exclusively online at Amazon.com.
The recall covers 17 model numbers of Trianium phone cases with a built-in battery. The lithium-ion battery inside each case can fail and overheat, which CPSC warns can burn consumers.
CPSC has not announced that this recall is closed. Consumers who own a recalled case should stop using it right away. They should dispose of it under local battery-disposal rules and contact Endliss Technology for a free replacement pack.
- Action type: Recall
- Announcement and initiation dates: Announced and initiated October 7, 2020
- Company and responsible agency: Endliss Technology Inc. and the U.S. Consumer Product Safety Commission
- Recall or campaign number: 21-003
- Affected models, lots, UPCs, serial numbers, or VINs: 17 model numbers (on the back of the case, under the “Trianium” mark): TM000006, TM000007, TM000008, TM000009, TM000010, TM000011, TM000046, TM000047, TM000048, TM000049, TM000101, TM000103, TM-06A-4000BBLK, TM-06A-4000ROGD, TM-06A-4000WSLV, TM-S6BC-BLK, MTS-3000-BBLK
- Number of affected units: About 367,000
- Sold at and sale period: Sold online exclusively at Amazon.com, September 2014 through July 2020, for between $30 and $100
- Hazard: “The lithium-ion battery in the cases can overheat resulting in thermal runaway, posing a burn hazard to consumers.”
- Reported incidents, injuries, illnesses, and deaths: 96 reports of the battery overheating (thermal runaway) received by Endliss, including 10 burn-injury reports
- Remedy: Replace: stop use, return the case via Endliss’s RMA process, and get a free replacement 10,400 mAh battery pack
Table Of Contents
- Latest Amazon Battery Phone Cases Recall Updates
- Which Amazon Battery Phone Cases Are Affected?
- Why Were Amazon Battery Phone Cases Recalled?
- Reported Incidents, Injuries, or Illnesses
- What Should Consumers Do?
- Legal Options
- Filing Deadlines
- Frequently Asked Questions
- Is a Trianium Cell Phone Battery Pack Case the Same as a Trianium Battery Phone Case?
- Why Do Trianium Battery Phone Cases Pose a Burn Risk?
- Does This Recall Cover Other Amazon-Sold Phone Cases?
- Does Endliss Send a Tracking Number for the Recalled Case Return?
- Is There an Amazon Battery Phone Case Recall Lawsuit?
- References
Latest Amazon Battery Phone Cases Recall Updates
October 7, 2020: Trianium Battery Phone Cases Recalled for Burn Hazard
The U.S. Consumer Product Safety Commission announced recall 21-003 of about 367,000 Trianium battery phone cases made for Endliss Technology Inc [1]. The lithium-ion battery inside the cases can overheat and cause burns.
Endliss received 96 reports of the battery overheating, including 10 burn injuries. Trianium confirmed the recall on its own support page [2]. RTT News also reported the recall that week [3].
Which Amazon Battery Phone Cases Are Affected?
Endliss Technology imported and sold Trianium battery phone cases with a built-in lithium-ion battery. The recall covers cases sold under any of these 17 model numbers, found on the back of each case under the Trianium name:
- TM000006
- TM000007
- TM000008
- TM000009
- TM000010
- TM000011
- TM000046
- TM000047
- TM000048
- TM000049
- TM000101
- TM000103
- TM-06A-4000BBLK
- TM-06A-4000ROGD
- TM-06A-4000WSLV
- TM-S6BC-BLK
- MTS-3000-BBLK
Amazon sold the cases exclusively online, from September 2014 through July 2020, for $30 to $100. Some model numbers, such as TM-06A-4000BBLK, also identify the case’s color.
Every recalled case falls under one of the seventeen numbers listed above. Consumers should find their case’s model number before they contact Endliss for a replacement.
Why Were Amazon Battery Phone Cases Recalled?
Endliss Technology recalled Trianium battery phone cases because a defect in the battery can make it overheat. CPSC described the hazard: “The lithium-ion battery in the cases can overheat resulting in thermal runaway, posing a burn hazard to consumers.”
Endliss received reports of overheating cases before the recall began. The company worked with CPSC to recall the affected cases and offer a free replacement power pack.
Reported Incidents, Injuries, or Illnesses
Endliss received 96 reports that a Trianium battery phone case’s battery overheated. Ten of these reports described a burn injury. The battery’s lithium-ion cells caused this overheating, as CPSC’s notice explains.
CPSC’s recall notice does not give a cutoff date or say where the reports came from. A report to Endliss or CPSC does not by itself prove the battery caused the injury.
Anyone hurt by an overheating case may want to save records of what happened, including photos, receipts, and any medical care received.
What Should Consumers Do?
Anyone with a recalled Trianium phone case should take these steps:
- Stop using the recalled Trianium phone case immediately.
- Dispose of the case according to your local battery-disposal laws.
- Contact Endliss Technology toll-free at 844-609-0874, or online at www.trianium.com/recall, to start a free replacement.
- Return your case to Endliss so the company can send a replacement battery pack.
- Report the hazard, or any injury it caused, to CPSC at www.SaferProducts.gov.
Legal Options
No lawsuit, class action, or multidistrict litigation has been filed over Trianium battery phone cases as of this recall. A product recall does not automatically prove that a company is legally liable for an injury.
Schmidt & Clark reviews potential product-liability claims for people hurt by a defective lithium-ion battery case, including this recall. For a related Amazon battery-case recall, see the Amazon battery recall lawsuit page.
Filing Deadlines
A deadline for a product-liability claim comes from the law of the state where you live, and this recall does not set it. How much time you have depends on when you learned of the injury and its cause.
In some states, that clock starts on the day a doctor diagnoses the injury rather than on the date it happened. Waiting too long can end an otherwise strong claim, so talk to a lawyer as soon as you can.
Frequently Asked Questions
Is a Trianium Cell Phone Battery Pack Case the Same as a Trianium Battery Phone Case?
Yes, a “Trianium cell phone battery pack case” is CPSC’s own name for the same product sold under the Trianium battery phone case name. Consumers may see either name, and both describe the same recalled models Endliss imported and sold through Amazon.
Why Do Trianium Battery Phone Cases Pose a Burn Risk?
Trianium battery phone cases pose a burn risk because the lithium-ion battery inside can enter thermal runaway when it fails. Endliss manufactured the cases in China and imported them through its Hayward, California office before selling them on Amazon.
Does This Recall Cover Other Amazon-Sold Phone Cases?
No, this recall does not cover other Amazon-sold phone cases or accessories. It covers only Endliss’s recalled Trianium battery phone case models. No related foreign, agency or comparable-product action has been reported for Trianium or Endliss.
Does Endliss Send a Tracking Number for the Recalled Case Return?
Yes, Endliss sends a tracking number to consumers who contact it about a recalled case. The notice explains customers use that number to mail the case back before a free replacement battery pack ships once Endliss receives the return.
Is There an Amazon Battery Phone Case Recall Lawsuit?
No, there is no lawsuit filed yet over the Amazon battery phone case recall. As of September 28, 2026, no class action, multidistrict litigation or individual case names Endliss Technology for these battery phone cases. A recall does not automatically establish liability or eligibility for compensation.
References
- https://web.archive.org/web/20230210164053/https://www.cpsc.gov/Recalls/2021/Endliss-Technology-Recalls-Trianium-Battery-Phone-Cases-Due-to-Burn-Hazard-Sold-Exclusively-on-Amazon-com
- https://support.trianium.com/hc/en-us/articles/360057451453-Trianium-Battery-Case-Recall-10-05-2020
- https://www.rttnews.com/3134809/endliss-technology-recalls-trianium-battery-phone-cases-due-to-burn-hazard.aspx