手机续航大横评！到底谁的电池最耐用？

Summary

This video delves into the often-overlooked issue of 'locking capacity' in mobile phones, where manufacturers limit the usable battery capacity to extend battery lifespan. The presenter explains how devices like the Redmi K80 Pro and OnePlus Ace 5 are affected, with actual battery capacities being lower than advertised. The practice is linked to preserving the battery's health by preventing overcharging and degradation over time. While this may not be entirely negative, it’s rarely disclosed to consumers, leading to discrepancies between advertised and real-world battery performance. The video encourages viewers to check detailed battery tests for better purchasing decisions.

Takeaways

• 😀 Manufacturers are increasingly locking battery capacity to extend battery lifespan, often without informing users about the actual usable capacity.
• 🔋 A typical phone's battery capacity may be lower than advertised due to this locking, as seen with the Redmi K80 Pro having only 94% of its stated capacity.
• 🔧 Battery capacity locking is used to protect high-density silicon-carbon batteries, which are prone to damage and capacity loss over time.
• 📉 High-energy-density batteries can suffer from issues like expansion and electrode failure, leading to reduced battery performance if charged too frequently or fully.
• ⚡ Charging a battery only to about 80% is often recommended to help maintain its health, and some manufacturers employ capacity locking to enforce this.
• 🔍 Capacity locking is not inherently bad; it can be beneficial for preserving the longevity of the battery, especially in high-density battery types.
• 🛠️ Disassembling and testing phone batteries is a costly and time-consuming process, making it hard to track the true battery capacities across various models.
• 📊 The video includes detailed battery life tests of various phones, where users can review the full testing process for transparency and accuracy.
• 💡 While manufacturers promote large battery capacities, the actual usable capacity might be far lower, raising questions about marketing practices.
• 📺 The video encourages viewers to check the full battery life tests and rankings, available on the platform, to make informed decisions before purchasing a phone.

Q & A

What is 'locked capacity' in relation to mobile phone batteries?

Locked capacity refers to the practice where manufacturers intentionally limit the usable capacity of a phone's battery. This means the actual capacity available to the user is lower than the advertised capacity, often to extend the battery's lifespan.

Why do manufacturers lock the battery capacity in smartphones?

Manufacturers lock battery capacity primarily to prolong battery life. High-energy density batteries, like those with silicon-carbon electrodes, can degrade faster if they are charged to full capacity or used extensively, so limiting the usable capacity helps prevent issues such as electrode rupture.

How much of the advertised battery capacity is actually available on devices like the Redmi K80 Pro?

In the case of the Redmi K80 Pro, the advertised battery capacity is 23.2Wh, but the actual usable capacity is only 21.9Wh, which is approximately 94% of the advertised capacity.

What is the impact of locking battery capacity on battery performance?

Locking the capacity can reduce stress on the battery by preventing it from being fully charged or discharged, which helps avoid capacity fading and degradation over time. This can improve the overall longevity of the battery.

Why are some mobile phones designed to have locked battery capacities?

Some mobile phones are designed with locked capacities to reserve part of the battery for super power-saving modes or to prevent excessive wear on the battery, which could result in a shorter lifespan if fully used.

How does charging a battery to 80% impact its lifespan?

Charging a battery to 80% is commonly believed to extend its lifespan because it reduces the stress on the battery, preventing excessive wear and degradation, especially with high-density batteries.

What is the difference in battery life between the OnePlus 13 and OnePlus Ace 5 Pro, despite both being from the same company?

Although both phones are from the same manufacturer, the OnePlus 13 has a locked battery capacity, which results in shorter battery life compared to the Ace 5 Pro, which does not have such a limitation.

Are manufacturers transparent about the actual usable battery capacity in their devices?

No, manufacturers often advertise a higher battery capacity than what is actually usable by the consumer, which can be misleading. The full capacity is often locked to ensure better battery longevity, but this is not always disclosed.

How do manufacturers balance between battery longevity and performance?

Manufacturers aim to balance battery longevity and performance by locking capacity to prevent full battery cycles, which could shorten lifespan. This helps maintain a healthy battery over time while still providing acceptable performance.

Where can consumers find detailed battery life test results for different smartphones?

Consumers can find detailed battery life test results on the website socpk.com, as well as on platforms like site B, where the creators of the video posted comprehensive testing data.