{"id":443830,"date":"2026-05-25T04:01:24","date_gmt":"2026-05-25T04:01:24","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/443830\/"},"modified":"2026-05-25T04:01:24","modified_gmt":"2026-05-25T04:01:24","slug":"motorola-razr-ultra-2026-battery-tested-and-its-the-longest-lasting-foldable-ever","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/443830\/","title":{"rendered":"Motorola Razr Ultra 2026 battery tested \u2014 and it’s the longest lasting foldable ever"},"content":{"rendered":"

I didn\u2019t think it was going to be easy for any other foldable to beat the Razr Ultra 2025\u2019s <\/a>record-setting battery life performance, but it goes to show how silicon-carbon batteries<\/a> are rewriting the way phones last on a single charge. After putting the latest Motorola Razr Ultra 2026<\/a> through the Tom\u2019s Guide battery drain test, it proved to me that this new battery tech is a winning formula.<\/p>\n

Just last week, I raved about the Razr Fold\u2019s class-leading battery life performance<\/a> among notebook-style foldables. But while it set a record, I pointed out how much better it would\u2019ve been if it were using a carbon-silicon battery instead \u2014 something that the Razr Ultra 2026 clearly benefits from having.<\/p>\n

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Quite simply, the Ultra 2026 is the foldable phone with the longest battery life we\u2019ve ever tested.<\/p>\n

Latest Videos From<\/p>\n

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Motorola Razr Ultra 2026 vs Razr Fold: 5 Things to Know (HANDS ON) – YouTube
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Watch On <\/a>
\nHow we test battery life performance<\/p>\n

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(Image credit: Tom’s Guide \/ John Velasco)<\/p>\n

Every phone I review on Tom\u2019s Guide is put through the same battery drain test<\/a>. We set the display to 150 nits using a light meter to ensure consistency, then run a custom script to simulate continuous web surfing over a 5G connection until the battery dies.<\/p>\n

If you look at our best phone battery life<\/a> guide, you\u2019ll see that some phones are marked with an asterisk \u2014 signaling that they were tested using the latest version of our battery benchmark. The Razr Ultra 2025 was evaluated using the previous version of this test, where it achieved an average battery life of 15 hours and 42 minutes in its default \u201cSmart and Balanced\u201d mode.<\/p>\n

The results: It\u2019s a recordSwipe to scroll horizontallyRow 0 – Cell 0 <\/p>\n

Battery size (mAh) <\/p>\n

Battery life (hrs:mins) <\/p>\n

Charging % in 15 minutes<\/p>\n

Charging % in 30 minutes<\/p>\n

Razr 2026<\/p>\n

4,800 mAh<\/p>\n

14:43<\/p>\n

42%<\/p>\n

71%<\/p>\n

Razr Plus 2026<\/p>\n

4,500 mAh <\/p>\n

14:13 <\/p>\n

36%<\/p>\n

72%<\/p>\n

Razr Ultra 2026<\/p>\n

5,000 mAh<\/p>\n

16:20<\/p>\n

42%<\/p>\n

74%<\/p>\n

Razr Fold<\/p>\n

6,000 mAh<\/p>\n

14:44<\/p>\n

42%<\/p>\n

75%<\/p>\n

Galaxy Z Flip 7<\/p>\n

4,300 mAh<\/p>\n

12:24<\/p>\n

29%<\/p>\n

55%<\/p>\n

Since innovation for lithium-ion battery tech has peaked, the only way for phones to last longer has been to pack larger batteries \u2014 which is why we\u2019ve seen only incremental increases in battery capacities over the last handful of years. However, the inherent problem is that as capacities grow, so do phone size and weight.<\/p>\n

Silicon-carbon batteries change the game by cramming more charge into the same amount of space \u2014 without adding substantial thickness or weight. The entire Razr 2026 lineup clearly exhibits this, as every model gets a capacity bump without being any heavier or thicker than its predecessor.<\/p>\n

Get instant access to breaking news, the hottest reviews, great deals and helpful tips.<\/p>\n

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(Image credit: Tom’s Guide \/ John Velasco)<\/p>\n

Motorola fashioned a 4,700 mAh battery into the Razr Ultra 2025, but has increased it to a 5,000 mAh capacity for the Razr Ultra 2026. This amounts to a 6.38% difference, which doesn\u2019t look like a whole lot on paper. But when combined with a more power-efficient Snapdragon 8 Elite chip, it propels the Razr Ultra 2026 to a record-setting mark.<\/p>\n

Specifically, it clocked an average time of 16 hours and 20 minutes. That turns out to be an increase of 38 minutes, or a 4% jump in longevity compared to the results of the Razr Ultra 2025. While that might not seem massive, if the Razr Ultra 2025 were put through our newer version of the test, I suspect its time would be significantly lower.<\/p>\n

Nevertheless, our battery drain tests reveal that the Razr Ultra 2026 has the longest battery life of any foldable phone we\u2019ve ever tested \u2014 even beating out the notebook-style Razr Fold in the process. Compared to its most direct rival, the Galaxy Z Flip 7<\/a>, it exposes a massive gap in battery tech. Frankly, it doesn\u2019t bode well for the rumored Galaxy Z Flip 8, which isn\u2019t likely to adopt a silicon-carbon battery anytime soon.<\/p>\n

Bottom Line<\/p>\n

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(Image credit: Tom’s Guide \/ John Velasco)<\/p>\n

In my day-to-day use, I\u2019m finding the Razr Ultra 2026 easily sitting above 40% each night right before bedtime. Even though it doesn\u2019t achieve the same true two-day battery life I got with the OnePlus 15<\/a>, it\u2019s still deeply impressive for a foldable phone that\u2019s slimmer and far more compact.<\/p>\n

However, I can\u2019t help but wonder how much longer it could last if Moto had opted to use the latest Snapdragon 8 Elite Gen 5 chipset \u2014 as opposed to recycling the same one that powered last year\u2019s model. If it had, I suspect it could have easily gotten closer to the 20-hour mark. Either way, it shows how battery tech and chipsets go hand-in-hand when it comes to endurance.<\/p>\n

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