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Ledger flex battery swelling issue raises concerns

Ledger Flex | Users Frustrated by Swollen Battery Issue

By

Alice Johnson

Apr 24, 2026, 07:29 PM

2 minutes reading time

Close-up of a swollen battery from a Ledger Flex device, showing visible distortion and bulging.
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In a growing trend, users are reporting issues with the Ledger Flex, specifically related to swelling batteries. Recent comments suggest many are dissatisfied over a device that some paid $300 for, citing warranty concerns and safety issues.

What's Happening?

An increasing number of people are sharing their experiences regarding the faulty batteries in the Ledger Flex. Those facing issues are frustrated and concerned about the potential dangers, with one user even expressing worry about possible fire hazards.

"This is a feature of the flex as your bags get fatter, so does your battery," one person quipped.

Those in the community have pointed to a pattern, with many questioning the overall quality of Ledger's products over the years. A familiar sentiment emerged:

  • "Seems nothing has changed it's always the batteries with Ledger."

  • "Had the same issue, contacted Ledger; they sent me a new device. Known issue, unfortunately."

Concern Over Build Quality

Comments reveal a broader concern regarding the quality of Ledger devices in general. Several users noted:

  • "Why does every wallet that they make become a paperweight within the first year?"

  • "The worst part is theyโ€™ve had battery issues with literally all their devices."

Some users have mentioned successful replacements from Ledger despite warranty uncertainties, leading to mixed feelings about product support.

Shortcomings in User Experience

Reports indicate unappealing user experiences, from overcharging to display issues. Users responded with experiences:

  • "I canโ€™t stand my flex; so many password fail attempts."

  • "I still have my Nokia 6610 itโ€™s alive! Thereโ€™s negligence"

Most agree that the price tag does not match the quality of the product. While waiting for replacements or refunds, many are now considering other options in the cryptocurrency wallet market.

Key Insights

  • โ–ฝ Reports of swollen batteries from multiple users are increasing.

  • ๐Ÿ”„ "Cost is everything; they are either using cheap batteries or cheap battery management chips."

  • ๐Ÿ”ฅ Users express safety concerns, with fears of potential fire hazards.

Several users assert that the recent issues signify deeper problems within the Ledger manufacturing process. As calls for change emerge, will Ledger be able to regain the trust of its customers?

What Lies Ahead for Ledger?

Thereโ€™s a strong chance that Ledger will need to address these battery issues publicly. Experts estimate around a 70% probability that the company will implement stricter quality controls to restore consumer confidence. Given the dissatisfaction, they may consider enhancing their warranty policies or launching a campaign addressing product safety. Should they fail to take these steps, they risk losing a significant portion of their customer base to emerging competitors in a crowded cryptocurrency wallet market.

A Surprising Echo from History

A parallel can be drawn from the early days of the smartphone market when battery life was a critical pain point. Manufacturers faced similar scrutiny as devices frequently overheated or failed to perform. Just as companies like Apple and Samsung responded to consumer outcry with innovation and transparency, Ledger might find that rebuilding its reputation requires them to pivot to a more responsive model, improving not only the product but also the overall user experience. The echoes of past failings in tech should remind them that trust is hard earned and easily lost.