Last updated: June 9th, 2026 at 12:48 UTC+02:00
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Likely a software bug.
Reading time: 2 minutes
Abhijeet Mishra / SamMobile
It's not uncommon for some devices to suffer from elevated battery life drain after they're updated to a new firmware version. This is what appears to have happened to the Galaxy Z Fold 7 after it received the latest One UI 8.5 update.
Several users have complained that their Galaxy Z Fold 7's battery is draining far too quickly after updating to latest firmware version.
There are many reports from users on Reddit that their Galaxy Z Fold 7's battery is draining faster than it did before they updated to One UI 8.5. The rate at which their battery is draining appears to vary.
Some claim that their device's battery life has effectively been cut in half while others say that it's draining steadily at an increased pace, while others say that they're now having to charge the device twice in a single day.
The Galaxy Z Fold 7 does provide decent battery life courtesy of its 4,400mAh cell. It can typically last you an entire day on a full charge with moderate usage, so anyone having to charge it twice in a single day does represent that it's not all working as it should be.
It's not entirely clear what might be causing the faster drain. There could be a bug of sorts behind it, but Samsung hasn't said anything on the matter just yet. Users can find solace in the fact that if this is indeed a problem, it was introduced by a software update, so it can reasonably be fixed with an update as well. The only thing that matters now is when Samsung gets around to sending out a fix.
Adnan Farooqui is a long-term writer at SamMobile. Based in Pakistan, his interests include technology, finance, Swiss watches and Formula 1. His tendency to write long posts betrays his inclination to being a man of few words.
