An issue that has slowly reared its head over the lifespan of Sony’s otherwise excellent WF-1000XM4 earbuds is one centered around battery drain. As I mentioned in my review of the brand-new WF-1000XM5, a significant number of people who bought the company’s last flagship earbuds have encountered this problem — to the point that the Sony Headphones subreddit has done a painstaking job of documenting it.

Although there’s never been a recall or official replacement program, Sony seems well aware of the issue by now. And at least in the United States, customers often have a relatively easy time getting a replacement pair of 1000XM4 earbuds under warranty (or sometimes even out of warranty). Obtaining a new set in other countries can be more of a hassle, however, so ahead of the 1000XM5 announcement, I pressed Sony for answers about whether this model risks sharing any battery longevity concerns.

The answer seems to be no.

In a statement from Sony Electronics provided by spokesperson Chloe Canta, the company said that “similar issues won’t happen because we have optimized the charging algorithm.” No other details were provided — Sony can be a little terse when it comes to these things — so naturally, I’ve asked for more in the way of specifics.

But based on that language, the WF-1000XM5 earbuds were apparently designed to resolve this problem from the start. Hopefully, the new buds are smarter about battery management and preventing wear over the course of many recharge cycles. It’s also feasible that Sony has quietly made other changes related to the batteries used in the 1000XM5.

Battery endurance seems to be a challenge shared by several of Sony’s different earbud models. The company has previously issued firmware updates aimed at reducing “the burden on the battery” and alleviating “the loss of battery capacity due to long-term use.” But 1000XM4 owners have observed the battery drain problem within a year of buying the expensive earbuds.

Sony’s new flagship earbuds don’t begin shipping to customers until early August, but this is something I’ll be keeping an eye on over the coming months. Hopefully, the algorithm tweaks and any other improvements Sony has made will help buyers feel more confident about the 1000XM5 earbuds lasting longer into the future.

In a perfect world, these consumable batteries would be easier to replace ourselves once they start having a tougher time holding a charge. Wireless earbuds are tiny with a lot of delicate components, but hopefully, we’ll get there eventually.