Galaxy Z Fold 8 Ultra, Z Flip 8's bigger batteries come with a trade-off

Galaxy Z Fold 8 Ultra, Z Fold 8, Z Flip 8 batteries may wear out faster than their predecessors

They have an endurance rating of 1,200 charge cycles, which is less than that of the Galaxy Z Fold 7 and the Galaxy Z Flip 7.

TL;DR

Samsung's Galaxy Z Fold 8 and Z Flip 8 use larger silicon-carbon batteries that should improve single-charge endurance.

EPREL lists those batteries at 1,200 charge cycles before capacity is expected to drop below 80%.

That is lower than the 2,000-cycle rating of the Fold 7 and Flip 7 lithium-ion batteries, suggesting shorter battery longevity.

The Galaxy Z Fold 8 Ultra and the Galaxy Z Flip 8 offer significantly larger batteries than their predecessors, the Galaxy Z Fold 7 and the Galaxy Z Flip 7, thanks to Samsung's adoption of silicon-carbon battery technology, an upgrade Galaxy fans have been requesting for years. Unfortunately, those larger batteries also come with a trade-off.

According to the European Product Registry for Energy Labelling (EPREL), the batteries in the Galaxy Z Fold 8 Ultra and the Galaxy Z Flip 8 have an endurance rating of 1,200 charge cycles. In other words, after 1,200 charge cycles, their maximum capacity is expected to fall below 80% of the original capacity. The same is the case with the Galaxy Z Fold 8.

By comparison, the Galaxy Z Fold 7 and the Galaxy Z Flip 7 batteries, which use lithium-ion chemistry, are rated for 2,000 charge cycles, meaning they are expected to retain at least 80% of their original capacity until after 2,000 full charge cycles.

Samsung's new foldables are the first to use silicon-carbon tech, which are generally believed to have a shorter lifespan than conventional lithium-ion batteries. However, whether that's the case here is unclear, as the Galaxy S26 series also have an endurance rating of 1,200 charge cycles despite using lithium-ion batteries.

Abid Iqbal Shaik - Writer

First Samsung device: Galaxy S II

I’m a computer science engineer living in Hyderabad, India, who has a keen interest in automobiles and consumer electronics. My journalism career kicked off in 2017 with MySmartPrice where I wrote news, features, buying guides, and explanatory articles about technology among other things, and reviewed many products, including smartphones, tablets, laptops, PC components, smartwatches, audio devices, wearables, and smart home products. Since then, I have worked for 91Mobiles, Apple, and Onsitego, before finally landing on SamMobile.

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