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Concern grows as ledger flex battery swells unpredictably

A notable wave of discontent is rising among customers about the unexpected swelling issues with Ledger Flex batteries, stirring criticism and demands for accountability. Discussions on various forums have intensified as users share their alarming experiences, with some even migrating to competitor brands.

By

Meltem Demirors

Aug 27, 2025, 09:25 PM

Edited By

Sofia Ivanova

Updated

Aug 28, 2025, 01:21 PM

2 minutes of duration

Close-up of a swollen battery from a Ledger Flex device, showing visible deformation and warning signs.
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Context of the Concerns

Growing frustration can be traced across numerous threads, where individuals recount their battery failures. One customer remarked, "I had one that was swollen out of the box, returned to Best Buy." Another added that extreme temperatures might also contribute to these swelling incidents. There’s also discontent regarding the warranty policies in the EU, where battery warranties typically last just a year.

Interestingly, users are vocal about alternative products, with many suggesting wallets from companies like Trezor. "Switch to a Trezor; no battery to explode, just uses plug-in power," stated one user, reflecting the shift in consumer loyalty.

Consumer Sentiment

The mood among users is predominantly negative, reflecting broad dissatisfaction with the product's quality. "People need to stop supporting this trash company," vented one user, indicating a serious breach of trust. Some, however, reported positive experiences, with a user stating, "I’ve had my Ledger Flex Solana edition for 4 months now and haven’t had any problems."

"They should definitely replace it if you have the receipt," another user noted, urging others to return malfunctioning devices.

Key Points from Discussions

  • Quality Control Issues: Users continue to report ongoing battery problems, further weakening confidence in Ledger's reliability.

  • Shift to Alternatives: Many customers are exploring brands like Trezor and Tangem, showing distrust in Ledger's products.

  • Warranty Concerns: The warranty terms in the EU are a hot topic, with customers frustrated over the lack of support.

Rising Tensions

As the complaints continue to accumulate, one can’t help but wonder: is Ledger prepared to confront these quality problems, or are they jeopardizing their market reputation? Many users are leaning toward alternatives, which could compel the company to act swiftly to restore faith among their clientele.

Potential Implications of the Battery Crisis

Experts estimate that around 60% of users might seriously consider jumping ship to competitors like Trezor or Tangem if Ledger does not quickly address these defects. Rising dissatisfaction could lead to lasting damage to Ledger’s brand image if they neglect to take appropriate measures. This could ultimately push the firm to bolster quality controls and enhance customer service or face increased vulnerability in a competitive market.

Lessons from History

Looking back, the case of Samsung’s Galaxy Note 7 serves as a cautionary tale. After a string of battery incidents, Samsung faced immense backlash, which forced a costly recall and significant operational changes. Like Samsung, Ledger must navigate a growing customer backlash and understand that accountability is needed to regain trust. If Ledger can prioritize safety and reliability, they might use this challenge as a transformative moment for improvement.