Oppo Find X9 Pro Review

The 6.78-inch OLED display remains unchanged and is still excellent.

The Find X9 Pro features a 6.78-inch LTPO OLED display with a resolution of 1272×2772 pixels—oddly, it’s 8 pixels wider and 8 pixels shorter than the Find X8 Pro’s screen.Oppo Find X9 Pro smartphone Battery Life

The Find X9 Pro uses a large 7500mAh silicon-carbon battery, one of the major upgrades compared to its predecessor.Oppo states that the Find X9 Pro’s brightness should be 800 nits when manually adjusted, and can reach 1800 nits in bright light (screen fully lit).

Our experience with high frame rate gaming on Oppo phones didn’t change on the Find X9 Pro—all the games we tried were limited to 60Hz/60fps.

Therefore, it’s no surprise that theOppo Find X9 Pro smartphone Battery life is outstanding, achieving a record-breaking 21 hours and 57 minutes of active use. In fact, its performance would have been even higher if not for its mediocre talk time—all screen-on tests yielded excellent results.

The Oppo Find X9 Pro’s battery system is one of its core selling points. It successfully combines a large capacity (5100mAh), ultra-fast wired charging (100W), and practical wireless charging (50W), providing a top-tier “anxiety-free” battery life experience in the current smartphone market. If you highly value Oppo Find X9 Pro/smartphone Battery life and charging speed, the Find X9 Pro is definitely one of the most worthwhile models to consider on the market right now.

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Apple Battery Guide: Health, Replacement, and Tips to Maximize Battery Life

1. Apple Battery Health: What It Means and How to Check It

Battery health is an important indicator of your device’s performance. It measures the maximum capacity of your battery relative to when it was new. Over time, as the battery ages, it loses capacity, leading to shorter battery life.

How to Check Battery Health:

  • For iPhone: Go to Settings > Battery > Battery Health. Here, you’ll see the maximum battery capacity and whether your battery is operating at peak performance capacity.
  • For Apple Watch: While Apple Watch doesn’t offer a dedicated battery health feature, you can monitor battery usage and performance in the Watch app on your iPhone. If you notice excessive battery drain, it could indicate that a replacement is needed.

Apple recommends replacing the battery when its capacity drops below 80%.

2. Apple Watch Battery Life: How Long Does It Last?

The battery life of the Apple Watch varies depending on the model and how you use it. On average, the battery lasts about 18 hours on a full charge under regular usage. However, this can be influenced by various factors such as app usage, notifications, GPS, and the always-on display.

Factors That Impact Battery Life:

  • Heavy Usage: GPS and fitness tracking features will drain the battery faster.
  • Always-On Display: This feature, available in newer Apple Watch models, consumes more power.
  • Notifications: Frequent notifications can also impact battery life.

The battery is designed to last for around 500 charge cycles before performance starts to decline.

3. How to Check Battery Status on Apple Watch

To ensure your Apple Watch is performing optimally, it’s important to monitor the battery status. Here’s how you can check the battery on your Apple Watch:

  • For Apple Watch: Swipe up from the watch face to open the Control Center. You’ll see the battery percentage displayed at the top. Alternatively, you can open the Watch app on your iPhone to view battery usage and detailed statistics.

If your Apple Watch’s battery is not holding charge well or drains rapidly, it could be time for a battery replacement.

4. How to Save Battery on Apple Watch

Maximizing the battery life of your Apple Watch is crucial for daily use. Here are some tips to help you extend your Apple Watch’s battery life:

  • Use Power Saving Mode: For workouts, you can enable power-saving mode, which disables features like the heart rate monitor to extend battery life.
  • Reduce Screen Brightness: Lowering the screen brightness can significantly save battery. Go to Settings > Display & Brightness to adjust.
  • Turn Off Always-On Display: If your Apple Watch has the always-on display feature, turning it off will save battery. Navigate to Settings > Display & Brightness > Always On to disable it.
  • Limit Notifications: Reduce unnecessary notifications that could drain your battery. You can manage notifications via the Watch app on your iPhone.
  • Enable Theater Mode: Theater Mode keeps the screen off until you tap it, which helps to conserve battery when you’re not actively using it.

5. Apple Battery Replacement Cost in the UK

If your Apple device’s battery is no longer performing well, it may be time to replace it. Apple offers battery replacement services, and the cost will depend on the model of your device.

Typical Costs for Battery Replacements in the UK:

  • iPhone: Battery replacement costs range from £49 to £69, depending on the iPhone model. If you have AppleCare+, the replacement may be free or discounted.
  • Apple Watch: Replacing the battery on an Apple Watch typically costs between £59 and £79 depending on the model and warranty status.
  • AppleCare+ Benefits: If your device is under AppleCare+ and the battery health drops below 80%, Apple will replace the battery free of charge.

Apple batteries are built to last, but like all batteries, they will degrade over time. By understanding how to check battery health, knowing how long the Apple Watch battery lasts, and using tips to extend battery life, you can ensure your Apple devices continue to perform at their best. If you notice significant battery degradation, consider Apple’s battery replacement options to restore your device to its original performance.

Fitbit Charge 4 Battery Replacement: What to Do If Your Fitbit Battery Is Draining Fast (UK Guide)

If you’ve noticed your Fitbit Charge 4 battery draining fast, you’re not alone. Many users report that their Fitbit’s battery no longer holds a charge like it used to — or, worse, dies within hours. So, what are your options when your Fitbit battery starts acting up? In this article, we’ll walk you through whether Fitbit battery replacement is possible, how to handle Fitbit Charge 4 battery replacement, and what UK users should know about getting support locally.


Why Is My Fitbit Charge 4 Battery Draining Fast?

There are several reasons your Fitbit Charge 4 battery drains quickly:

  • Software updates causing bugs or battery drain
  • Bluetooth constantly syncing with your phone
  • Always-on GPS or screen settings
  • Overuse of features like notifications, SpO2 tracking, or heart rate monitoring
  • Battery aging, especially if the device is 1.5+ years old

If none of the quick fixes (like reducing screen brightness, turning off GPS, or restarting your device) solve the issue, you might need a battery replacement.


Can You Replace the Fitbit Charge 4 Battery?

Officially, Fitbit does not offer battery replacement services for most of its devices — including the Fitbit Charge 4. Their typical response is to offer a discount on a new device if your current one is out of warranty.

However, that doesn’t mean you’re out of luck. You have two main options:

  1. Third-party repair services
  2. DIY battery replacement kits

Fitbit Charge 4 Battery Replacement Options (UK)

If you’re in the UK, here are your best options for Fitbit Charge 4 battery replacement:

1. Local Electronic Repair Shops

Some local shops now offer Fitbit repairs. Search for “Fitbit Charge 4 battery replacement UK” to find nearby services. Prices typically range from £30 to £60, depending on the service and location.

2. Online Repair Services

UK-based websites like iFixit UK or other independent electronics repair specialists may offer mail-in services. Make sure they provide a warranty on their work.

3. DIY Battery Replacement

If you’re comfortable with small electronics, you can order a Fitbit Charge 4 battery replacement kit online from platforms like Batterypcs.co.uk. These usually include:

  • Replacement battery
  • Screwdrivers/tools
  • Instructions or video guide

Caution: Replacing the battery yourself voids any warranty and risks damaging the device. Only try this if you’re experienced with electronics.


Is It Worth Replacing the Fitbit Battery?

Here’s a quick comparison to help you decide:

OptionCost (Approx)RiskWarranty
New Fitbit Charge 6£120+NoneYes
Battery Replacement (UK)£30–£60MediumMaybe
DIY Replacement Kit£15–£25HighNo

If your Fitbit is still under warranty (usually 1 year), contact Fitbit support for a free replacement. If it’s out of warranty and you love your Charge 4, a third-party repair might be worth it.


Alternative: Upgrade Instead?

If you’re considering a new fitness tracker, you might want to look at:

  • Fitbit Charge 6
  • Fitbit Inspire 3
  • Garmin Vivosmart 5
  • Xiaomi Smart Band 8

These newer models offer better battery life, newer sensors, and ongoing support.

Dealing with a Fitbit battery draining fast can be frustrating, especially when the company doesn’t offer direct battery replacement services. But if you’re in the UK, you still have options — from Fitbit Charge 4 battery replacement services to DIY repair kits.

Galaxy Buds 3 Pro review: Flawless

Samsung’s true wireless earbuds have been completely redesigned, with the Galaxy Buds 3 Pro delivering one of the most comprehensive upgrades yet. With a bold new design, upgraded internal components, and powerful support for Galaxy AI features, the Galaxy Buds 3 Pro stand out from other Samsung true wireless earbuds.

Samsung’s angular design creates a futuristic look. It also features a “blade light” that flashes in certain situations, such as when theGalaxy Buds 3 Pro Headphones Battery is low or the user is trying to locate the earbuds. Wearing comfort is impeccable. The Galaxy Buds 3 Pro remain comfortable for hours, and their durability has been significantly improved. The Buds 3 Pro are IP57 certified for water resistance.

The Galaxy Buds 3 Pro’s sound quality is the first true wireless earbuds to transmit 24-bit audio at 96kHz. Even in default mode, the highs and lows are perfectly balanced, vocals are smooth, tracks are clearly separated, and the overall sound is powerful.Galaxy Buds 3 Pro Headphones Battery

Samsung has always prioritized battery life for its true wireless earbuds. With active noise cancellation enabled, the Galaxy Buds 3 Pro can last for six hours on a single charge.Galaxy Buds 3 Pro Headphones BatteryGalaxy AI Now Available on True Wireless Earbuds

I found that active noise cancellation struggled when it was windy outdoors. Samsung has also applied some Galaxy AI magic to its active noise cancellation. Adaptive noise cancellation intelligently adjusts the noise blocking level based on the surrounding environment. Ultra-wideband calling allows for up to 16 kHz audio reception instead of the standard 8 kHz, which helps improve overall call quality. The most powerful addition to the Galaxy AI software on the Galaxy Buds 3 Pro is the real-time translation feature. In listening mode, the earbuds can recognize foreign languages.

In our testing, we found good accuracy. Our devices lasted up to five and a half hours before needing to be recharged.Galaxy Buds 3 Pro Headphones Battery

The Galaxy Buds 3 Pro are excellent true wireless earbuds. From their fresh and elegant design to their amazing sound quality, powerful Active Noise Cancellation (ANC),and new Galaxy AI features, they’re Samsung’s most comprehensive true wireless earbuds yet.

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Everything You Need to Know About the Parrot Bebop Drone Battery and Charging Time

If you’re a proud owner of a Parrot Bebop drone, you know how crucial the battery is for a smooth flying experience. Whether you’re replacing your battery or simply curious about how to manage your drone’s power more efficiently, this guide covers the essentials.

1. Parrot Bebop Drone Battery Overview

The Parrot Bebop drone uses a 3-cell 11.1V Li-Po (Lithium Polymer) battery, typically with a 1200mAh to 1500mAh capacity depending on the model or replacement version. This battery offers around 11 to 12 minutes of flight time under normal conditions. For drone enthusiasts looking for longer flights, having spare batteries is highly recommended.

2. How Long Does It Take to Charge a Parrot Bebop Drone Battery?

On average, it takes about 1 hour to 1 hour and 30 minutes to fully charge a Parrot Bebop drone battery using the original Parrot charger. Charging time can vary slightly depending on the specific battery capacity and the charger you use.

Tips for efficient charging:

  • Always use the official or compatible charger with the correct voltage and current.
  • Allow the battery to cool down before charging, especially after flight.
  • Avoid overcharging — unplug once it’s fully charged.

3. Battery Maintenance Tips

To extend the lifespan of your Bebop drone battery:

  • Store it in a cool, dry place.
  • Avoid completely discharging the battery.
  • Charge it at least once every 3 months if not in use.
  • Use fireproof LiPo battery bags for added safety.

4. When Should You Replace the Battery?

If your drone starts showing shorter flight times, unexpected shutdowns, or swelling of the battery, it’s time to consider a replacement. Always purchase batteries from reputable sources to ensure compatibility and safety.


A well-maintained battery ensures you get the best performance out of your Parrot Bebop drone. Keep an eye on charge times and battery health, and always fly with a fully charged pack for the best aerial experience.

Extend Your Drone’s Lifespan: Parrot Bebop 2 Battery Replacement Guide

If you’re a fan of the Parrot Bebop 2 drone, you know how important battery performance is for a smooth flying experience. Over time, however, your battery may begin to lose capacity, charge slower, or cut your flight time in half. In this guide, we’ll walk you through why and how to replace your Parrot Bebop 2 battery, and what to look for when buying a replacement.


Why Replace Your Parrot Bebop 2 Battery?

Like all lithium-polymer (LiPo) batteries, the Parrot Bebop 2 battery degrades over time with repeated use and charging. Here are some signs it’s time for a replacement:

  • Flight time has dropped significantly.
  • Battery doesn’t charge to full capacity.
  • Drone shuts down mid-flight or gives warning signals.
  • Swelling or physical damage is visible.

Ignoring these signs can result in poor performance or even safety issues.


Choosing the Right Replacement Battery

When shopping for a Bebop 2 replacement battery, make sure you choose one that matches the original specifications:

  • Voltage: 11.1V
  • Capacity: Typically 2700mAh
  • Connector: JST or equivalent plug for Bebop 2

You can opt for original Parrot batteries or reliable third-party options that offer longer flight time or faster charging. Just make sure the product is certified and tested for safety.


How to Replace the Battery

Replacing the battery is easy and doesn’t require any special tools:

  1. Power off your drone completely.
  2. Slide and remove the old battery from the back mount.
  3. Insert the new battery into the same slot and connect the plug securely.
  4. Charge the battery fully before your first flight.

Be sure to follow the safety instructions for charging and storage, especially with LiPo batteries.

Don’t let an aging battery ground your flying adventures. A timely battery replacement will keep your Parrot Bebop 2 in top shape and extend its usable life. Whether you’re capturing aerial footage or just enjoying a sunny day flight, a reliable battery is essential.

Acer Aspire 3 Laptop: Is it Really a Gaming Laptop 

This laptop is durable, has a sharp display, rich interfaces, and a decent battery life, making it perfect for students and families.

Here are some features of the Acer 3 thin and light laptop:

Acer Aspire 3 Laptop Battery

Dual-cell lithium-ion battery with a capacity of 4810 mAh and 45 watts of power;

Capacity: Up to 5.5 hours of battery life.

Color: Obsidian Black; Display size: 15.6-inch Full HD LED display (39.62 cm); Screen resolution is 1366 x 768 pixels; Dimensions: 0.85 x 15 x 10.2 inches (H x W x D); Weight: 2.1 kg (4.63 pounds); CPU: AMD Dual-Core A9 9420 Processor (3GHz); GPU: AMD Radeon R5; OS: 64-bit Windows 10 Home Edition; 1TB Hard Drive: DDR4

SDRAM: 6GB; Bluetooth 4.0 and 802.11 a/b/g/n/ac wireless connectivity; 720p HD video recording; 6 ports for extensive connectivityAcer Aspire 3 Laptop BatteryWhat is the battery life? The Acer Aspire 3 reportedly has a battery life of 5-8 hours. Again, the specific model you choose will significantly affect the battery life of this

Acer Aspire 3 laptop.

The Acer Aspire 3 A315-21-95KF model comes with a 2-cell lithium-ion battery that lasts up to 5.5 hours. When choosing a laptop that will provide a great gaming experience, there are several important variables to consider, including the CPU, GPU, RAM, storage space, andAcer Aspire 3 Laptop Batterylife. Some laptops are designed for gaming, while others are not. However, gaming laptops often have specific features that enhance the gaming experience.

The Acer Aspire 3 laptop is an excellent and affordable choice. It comes in a variety of models and is equipped with the latest Intel or AMD CPUs, making it a great choice for everyday computing.

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The future of artificial intelligence and mathematics

Last year, large language models were shown to be effective at solving math problems at the high school level and above. “Math is the source of great impact, but it’s done in much the same way that people have done for centuries standing in front of a blackboard,” said Patrick Shafto, DARPA program manager, in a video introducing the program. “The modern world is built on math. Math allows us to model complex systems, such as the way air flows around airplanes, the way financial markets fluctuate, and the way blood flows through the heart. Breakthroughs in advanced math can unlock new technologies, such as cryptography, which is crucial for private messaging and online banking, and data compression, which allows us to take images and video on the internet.

But advances in math can take years. DARPA wants to speed up the process. The goal of expMath is to encourage mathematicians and AI researchers to develop what DARPA calls “AI co-authors” tools that can break down large, complex math problems into smaller, simpler problems that are easier to understand and therefore faster to solve.

For decades, mathematicians have used computers to speed up calculations or to check the correctness of certain mathematical statements. The new hope is that AI might help them crack previously unsolvable problems.

But there’s a big difference betweenAI that can solve high school math problems (which the latest generation of models have mastered) and AI that can (in theory) solve problems that professional mathematicians spend their careers trying to solve.

On the one hand, these tools can automate some of the tasks that math graduates do; on the other, they can push human knowledge beyond existing limits.

Here are three ways to think about this gap.

AI  needs more than just clever tricks

Large language models aren’t good at math. They make things up and can be convinced that “2 + 2 = 5.” But newer versions of the technology, especially so-called large reasoning models (LRMs) like OpenAI’s o3 and Anthropic’s Claude 4 Thinking, are far more capable than ever before—and that’s got mathematicians excited.

This year, many LRMs scored high on the American Invitational Mathematics Exam (AIME), an exam for the top 5% of high school math students in the United States. LRMs try to solve problems step by step, rather than just giving the first answer.

Meanwhile, new hybrid models that combine a master’s degree in law (LLM) with some kind of fact-checking system have also made breakthroughs. Emily de Oliveira Santos, a mathematician at the University of São Paulo in Brazil, points to Google DeepMind’s AlphaProof system, which combines an LLM with DeepMind’s game-playing model AlphaZero, as an important milestone. Last year, AlphaProof became the first computer program to reach the level of a silver medalist in the International Mathematical Olympiad, one of the world’s most prestigious math competitions.

In May, Google DeepMind’s model AlphaEvolve achieved better results than anything humans have ever achieved on more than 50 unsolved math problems and several real-world computer science problems.

The momentum of progress is palpable. “GPT-4’s math capabilities are nowhere near undergraduate level,” de Oliveira Santos says. “I remember when it was released, I tested it with a topology problem, and it couldn’t get past a few lines before it completely froze.” But when she gave the same problem to OpenAI’s o1, an LRM released in January, it succeeded. Is AI  closing in on human mathematicians?

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Is Plantronics C054 the Same as CS540?

If you’ve been shopping for wireless headsets for your office phone, chances are you’ve come across both the Plantronics C054 and the CS540. But are they actually the same?

The Short Answer

Yes — the Plantronics C054 and CS540 refer to the same headset, but with a small distinction: the C054 is the part number used for the CS540 headset bundled with a specific base designed for use with desk phones.

Breaking It Down

  • CS540: This is the official model number of the headset itself. It’s part of Plantronics’ CS500 series, known for being lightweight and reliable.
  • C054: This is the part number for the complete wireless headset system (headset + base + accessories) typically used in office phone setups.

Why the Confusion?

Plantronics often uses different identifiers depending on the sales channel or packaging. When you buy a C054, you’re essentially getting the CS540 headset with the necessary base and components to connect it to your desk phone.

Compatibility & Features

Both terms refer to the same technology and share features like:

  • Up to 350 feet of wireless range
  • Multiple wearing styles (over-the-ear or headband)
  • Lightweight design
  • Noise-canceling microphone

If you’re wondering whether to buy the C054 or CS540, rest assured — you’re essentially choosing the same excellent wireless headset. Just make sure you’re getting the configuration that fits your phone system and needs.

Tip: If you’re purchasing for an office environment, search for the term “C054” to ensure it includes the complete setup with the base station.

Understanding the Logitech G915 Battery Size and Performance

The Logitech G915 is a premium wireless mechanical gaming keyboard known for its sleek design, low-profile switches, and impressive battery life. If you’re wondering about the battery size and how it affects performance, this article will cover everything you need to know.

Logitech G915 Battery Specifications

The Logitech G915 features a 1500mAh lithium-polymer (Li-Po) rechargeable battery. This capacity provides a balance between long usage time and a slim, lightweight design. The keyboard is designed for efficient power consumption, ensuring gamers and professionals can use it for extended periods without frequent recharging.

Battery Life and Charging

  • Battery Life: The G915 can last up to 30 hours with RGB lighting at 100% brightness. If RGB lighting is turned off or set to lower brightness levels, the battery can last significantly longer, even up to several weeks.
  • Charging Time: The keyboard takes approximately 3 hours to fully charge using the included micro-USB cable.
  • Power-Saving Features: The G915 automatically enters a low-power mode when inactive, further extending battery life.

How to Maximize Battery Life

  1. Adjust RGB Brightness: Reducing the lighting intensity or using static colors can extend battery life.
  2. Enable Sleep Mode: Ensure that the keyboard enters sleep mode when not in use.
  3. Turn Off RGB When Not Needed: If you’re using the keyboard for non-gaming tasks, consider disabling RGB lighting.
  4. Keep Firmware Updated: Logitech regularly releases software updates that may improve battery efficiency.

Conclusion

The Logitech G915’s 1500mAh battery provides excellent battery life, making it a great choice for gamers and professionals who want a wireless experience without constant recharging. By optimizing RGB settings and utilizing power-saving features, users can maximize the keyboard’s efficiency and enjoy long-lasting performance.