From an iPad Pro that lasted a little over 15 hours in lab battery tests to power stations that hit 100% in record time, five MISRYOUM Lab Award winners are among the best Prime Day deals still live as Amazon Prime Day runs June 23–26.
The charger scramble is always the same: you promise yourself you’ll plug in “after this one thing. ” and then—somehow—your battery is already at zero. This Prime Day, though, the deals aren’t vague promises. They’re tied to results from a Louisville. Kentucky-based testing lab. where products are pushed through the kind of routines most of us never have the patience to repeat.
Amazon Prime Day runs from Tuesday, June 23 through Friday, June 26. In ZDNET’s Lab Awards series, the focus is simple: rigorous testing, then a winner in each category that outperforms the others in a given test—like battery life.
This year’s roundup leans heavily on device makers that usually don’t discount much. Flagship hardware can cost a lot. But during Prime Day, several Lab Award winners are on sale, with discounts reported at up to 50%. Here are five of the most impressive lab picks, and what the testing found.
The M5 iPad Pro won the very first Lab Award for longest battery life in a tablet. In testing, the iPad lasted a little over 15 hours at maximum brightness before needing to be charged.
Battery testing for tablets was run 12 times per model: three rounds with maximum brightness and audio. three rounds with minimum brightness and audio. three rounds with maximum brightness and audio on Airplane Mode. and three rounds with minimum brightness and audio on Airplane Mode. The M5 iPad Pro was the model that lasted the longest across those runs.
Another lab winner tied to real-world annoyance—needing your phone to survive the day—came from OnePlus. The OnePlus 15 won in both of two testing methods. posting the highest battery life percentage after one (98%). two (94%). and three hours (89%) of running video playback. Those two testing methods measured battery life after video playback and during general use.
This phone isn’t available on Amazon. If you buy directly from OnePlus’ website, though, there’s a way to make the deal work: using the code EXTRA100 gives $100 off the OnePlus 15.
Portable power is its own kind of anxiety, especially when you’re away from outlets for longer than you planned. The Oupes Mega 1 earned a Lab Award as the fastest-charging small-sized portable power station. a class defined as devices with 600–1. 100 Wh. In the lab, higher watt-hours per time charged put the best performers at the top.
The Oupes Mega 1 reached 100% in its group in 21 minutes, while still retaining 1024 watts per hour. In that same comparison, it beat small-sized power stations from Anker, EcoFlow, and Bluetti.
If a full power station feels like overkill, there’s also the power bank category. The latest Lab Award went to the Cuktech 15 Air as the fastest-charging power bank. In testing, it charged to 100% in only 54 minutes. It also went from low to a quick boost fast—hitting about 50% in roughly 26 minutes—built for those “just get me through one more thing” moments.
That power bank comparison used a data-driven process. Each unit was measured on how quickly it reached charge milestones of 50%, 80%, and 100% when power banks were charged using a 70W USB-C power adapter.
Put together, the story is hard to miss: the same lab that turns vague specs into timed results is showing up again with winners that accelerate the most common pain points—battery that stretches long enough to forget about charging, and power gear that refills fast rather than dragging on.
Prime Day is already underway, and the window is short: Tuesday, June 23 through Friday, June 26.
Prime Day lab awards iPad Pro M5 OnePlus 15 portable power station Cuktech 15 Air power bank deals battery life testing Amazon Prime Day dates
Prime Day stuff is always “up to” something lol.
15 hours at max brightness sounds fake. Like who even keeps it max the whole time? I feel like they’re cherry picking the best conditions.
So it says the charger scramble is the same but then it’s not vague?? I’m confused. If they already tested it in Louisville, why do I still have to charge at zero? Seems like marketing to me.
I don’t trust battery “lab” results, my luck is my stuff dies in like 4 hours no matter what I buy. Also iPad Pro lasting 15 hours… okay but what about 5G and real life WiFi switching and all that. Prime Day June 23–26 is soon though so maybe I’ll just wait and see, I guess. Up to 50% off sounds good until you check the fine print and it’s only like $8 off.