CPSC recall 21-003, announced October 7, 2020, covers Endliss Technology Trianium cell phone battery pack cases (about 367,000 units). The lithium-ion battery in the cases can overheat resulting in thermal runaway, posing a burn hazard to consumers. The notice cites 96 incident reports. Consumers should immediately stop using the recalled phone cases, dispose of them in accordance with local laws on battery disposal, and contact Endliss for a free replacement power pack. Recall contact: call 844-609-0847, or go to www.trianium.com.
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Compare the model on your label, then check any serial numbers, date codes, and exclusions in the notice. A model match alone does not confirm that your unit is included.
Affected model numbers
Check the product label for these CPSC-listed model numbers: 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.
Which products are included?
This recall involves Endliss Technology Trianium battery phone cases for all types of mobile phones. The cases were sold in black, gray, white and pink colors. "Trianium" is written on the back of the case. There are 17 different model numbers included in this recall. Recalled model numbers include: TM000006, TM000007, TM000008, TM000009, TM000010, TM000011, TM000046, TM000047, TM000048, TM000049, TM000101, TM000103, TM-06A-4000BBLK, TM-06A-4000ROGD, TM-06A-4000WSLV, TM-S6BC-BLK and MTS-3000-BBLK.
Confirm these details on the official CPSC noticeWhat to look for
- Model numbers
- 17 listed. Yours must match one exactly.
- When sold
- September 2014 through July 2020
- Where sold
- Amazon, among the sellers the notice names
- Price paid
- $30 to $100
Why it was recalled
The lithium-ion battery in the cases can overheat resulting in thermal runaway, posing a burn hazard to consumers.
Incidents and injuries
Endliss has received 96 reports of batteries overheating due to thermal runaway, including 10 reports of burn injuries.
Official remedy
Consumers should immediately stop using the recalled phone cases, dispose of them in accordance with local laws on battery disposal, and contact Endliss for a free replacement power pack.
What to do now
- Check the label. Compare your model number with the 17 listed in this recall.
- Stop using it. The notice says to stop using recalled units immediately.
- Contact the firm. Call 844-609-0847, or go to www.trianium.com.
- Get the remedy. This recall offers a replacement. The notice says the remedy is free.
- Read the official notice. The CPSC notice is the final word on which units are included and what to do.
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Product and sales details
- Brand
- Endliss Technology
- Recall number
- 21-003
- Units
- About 367,000
- Manufactured in
- China
- Sold at / sales period
- Online at Amazon.com from September 2014 through July 2020 for between $30 and $100.
- Importer
- Endliss Technology Inc., of Hayward, Calif.
This recall in context
Compared with the 221 home electronics recalls in this index, as of October 31, 2026.
- Size
- 367,000 units: the 22nd-largest of 200 home electronics recalls that state a unit count. The median is 25,950 units.
- Hazards
- Fire: named in 153 of 221 home electronics recalls, the most common hazard among them. Burn: named in 94 of 221 home electronics recalls.
- Remedy
- Replacement: offered in 64 of 221 home electronics recalls, the most common remedy.
- Time on sale
- About 6 years. Recalled 3 months after the last month of sales the notice gives.
Recall contact information
Endliss toll-free at 844-609-0847, or online at www.trianium.com and click on the recall link on the page for more information.
Verify phone numbers, hours, and websites on the current CPSC notice before contacting the firm.
Know someone who has one?
Recalls only work when owners hear about them. Send this notice to family or friends who might own the same product.
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