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The iPhone Plus model (pictured) may potentially be replaced by the iPhone Air/Slim. Kerry Wan/ZDNETFollow ZDNET: Add us as a preferred source More

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What about Focus Modes – do they help battery life? Yes. Focus Modes help by letting you whitelist specific apps and contacts; during “Work” or “Sleep,” only critical alerts light up your display. That means fewer wake-ups and less background processing. I already mentioned disabling notifications above, but you can take it a step further with Focus Modes. Also: The best Apple deals right now: Save on MacBooks, iPhones, and moreHow to set up a Focus Mode:Open Settings > Focus > tap + to create a profile.Under Allowed Notifications, choose People and Apps.Optionally schedule it by time, location, or app. How do I identify the biggest battery hogs on iPhone? To see what might be draining your iPhone’s battery, go to Settings > Battery. There, you’ll see usage by app and how much time each spent on screen or in background. Also: How to fix an iPhone alarm that’s not going off – and why it might be happening Can removing my case while charging help? Possibly — mainly if your device gets hot while charging. Removing the case can improve heat dissipation, which might speed up charging and protect your iPhone’s battery health. Should I try a battery pack or a power bank? Yes! I always travel with one. All the settings tweaks in the world won’t help if you’re stranded somewhere, staring at a red battery icon, far from an outlet. Here are the top picks ZDNET’s editors recommend: Get the morning’s top stories in your inbox each day with our Tech Today newsletter. More

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Prada’s Linea Rossa glasses are an example of frames that could potentially fiit a lot of technology. Prada | Jason Hiner/ZDNETFollow ZDNET: Add us as a preferred source More

Smart Wi-Fi power strips are a great way to save on your power bill. But do they pay for themselves? Adrian Kingsley-Hughes/ZDNET Follow ZDNET: Add us as a preferred source More