• 低電量模式（Low Power Mode）是一種內建功能，可降低系統資源消耗並延長電池續航。啟動後，系統會暫停自動下載、郵件推送、部分視覺特效，以及背景應用程式重新整理。

• 開啟方式：
o 方法 1：前往【設定】→【電池】→ 開啟「低電量模式」。
o 方法 2：從「控制中心」快速啟動（需要在【設定】→【控制中心】中添加）。

• 建議：當電量低於 20% 時，iPhone 會自動提示是否開啟低電量模式，但你也可以在日常使用中手動開啟以節省電量。

• iPhone的螢幕是最耗電的元件之一，較高的亮度會加速電量消耗。

• 如何調整螢幕亮度：
o 手動調整：從「控制中心」滑動亮度條來降低亮度。
o 自動調整：開啟【設定】→【輔助使用】→【顯示與文字大小】→【自動調整亮度】。

• 建議：在室內或光線充足的地方，將亮度調低，有助於節省電池電量。

• 停用藍牙和AirDrop：這些功能會持續搜索附近的設備，即使不使用也會消耗電池。
可在【設定】→【藍牙】中關閉藍牙，並從「控制中心」關閉AirDrop，或設定為「僅限聯絡人」以減少頻繁搜尋。

• 關閉定位服務 : 許多應用程式會在背景使用GPS，這會消耗電量。
可在【設定】→【隱私與安全性】→【定位服務】，查看有哪些應用程式正在使用定位。你可以選擇「使用時允許」或「永不」來限制定位存取，減少不必要的電量消耗。

• 停用不必要的通知 : 應用程式的推播通知會頻繁喚醒螢幕，增加耗電量。
可在【設定】→【通知】中關閉不必要的應用程式通知，或調整為「僅限標記」。

iPhone提供詳細的電池使用數據，讓你了解哪些應用程式最耗電。
可在【設定】→【電池】中查看「過去24小時」或「過去10天」的電池使用情況。若發現某些應用程式耗電異常，可考慮減少使用或調整其設定。

• 背景應用程式重新整理（Background App Refresh）允許應用在背景更新數據，即使你未開啟應用，它們仍可能在後台運作並消耗電池。
可在【設定】→【一般】→【背景應用程式重新整理】中選擇「關閉」或「Wi-Fi」模式（避免行動數據時耗電）。

• 建議：對於不常用的應用，如社交媒體、新聞應用，可關閉該功能來節省電力。

應用程式開發者經常釋出更新，以改善應用效能和電池優化。
可在【App Store】中點擊個人頭像 → 向下滑動刷新 → 更新應用程式，並建議啟用【自動更新】功能，但設定為「僅Wi-Fi」，以避免行動數據耗電。

如果你習慣在iPhone上關閉App以節省電量，可能要重新考慮一下了，因為根據Apple的說法，保持App開啟實際上更省電。Apple解釋指「當看到最近使用的App時，這些應用其實並未被真正打開，而是處於待機模式，以助導航和多任務處理。」Apple建議：應該在App沒有回應時才該關閉App。

iPhone的最佳運行溫度範圍為 0°C 至 35°C，過高或過低的溫度都會影響電池性能。避免長時間暴露在烈日下，特別是夏天不要將iPhone放在車內。在極冷環境下，電池可能會暫時失效，但回暖後通常可恢復正常。

• iPhone長時間運行可能會產生軟體問題，導致電池消耗加快。

• 解決方法：
o 每隔幾天重啟一次 iPhone，可清理暫存檔案，讓系統運行更流暢。
o 【方法】：長按電源鍵 + 音量鍵（Face ID機型）或按住電源鍵（Home鍵機型）→ 滑動關機 → 再次開機。

劣質充電器或數據線可能會損害電池健康，影響長期使用壽命。建議選擇 Apple 官方或 MFi（Made for iPhone）認證的充電器和充電線。避免使用劣質快充設備，因為過高的電流可能會損害電池。

• 如果電池老化，很可能會導致耗電過快，造成 iPhone 經常發燙。因此檢查 iPhone 電池健康度可以幫助你了解 iPhone 電池的狀況，並及時進行更換或維修。

• 以下是檢查 iPhone 電池健康度的方法： 前往「設定」>「電池」>「電池健康度」 檢查「最大容量」一欄，如果顯示少於 80%，則意味著你的 iPhone 電池已經老化，需要進行更換或維修。

• 但需要注意的是，如果你的 iPhone 電池健康度已經顯示少於 80%，即使你使用了其他省電方法，也可能無法完全解決 iPhone 耗電過快的問題，因為此時 iPhone 的電池狀況已經處於非常不佳的狀態了，建議考慮直接更換電池。

• Low Power Mode is a built-in feature that reduces system resource consumption and extends battery life. When activated, the system pauses automatic downloads, email push notifications, certain visual effects, and background app refresh.

• How to activate:
o Method 1: Go to Settings → Battery → Turn on "Low Power Mode."
o Method 2: Quickly activate from the Control Center (you need to add it in Settings → Control Center).

• Recommendation: When the battery drops below 20%, the iPhone will automatically prompt you to enable Low Power Mode, but you can also manually turn it on during regular use to save power.

• The iPhone's screen is one of the most power-consuming components, and higher brightness accelerates battery drain.

• How to adjust screen brightness:
o Manual adjustment: Slide the brightness bar from the Control Center to lower the brightness.
o Automatic adjustment: Enable Settings → Accessibility → Display & Text Size → Auto-Brightness.

• Recommendation: Lower the brightness in indoor or well-lit areas to help save battery power.

• Disable Bluetooth and AirDrop: These features continuously search for nearby devices, consuming battery even when not in use. You can turn off Bluetooth in Settings → Bluetooth and disable AirDrop from the Control Center, or set it to "Contacts Only" to reduce frequent searches.

• Turn off Location Services: Many apps use GPS in the background, which drains battery. You can check which apps are using location in Settings → Privacy & Security → Location Services. You can choose "While Using" or "Never" to limit location access and reduce unnecessary battery consumption.

• Disable unnecessary notifications: App push notifications frequently wake the screen, increasing battery usage. You can turn off unnecessary app notifications in Settings → Notifications, or adjust them to "Only Show in Notification Center."

iPhone provides detailed battery usage data, allowing you to understand which applications consume the most power.
You can view the battery usage for the past 24 hours or 10 days in Settings → Battery. If you notice certain apps are consuming an abnormal amount of power, consider reducing usage or adjusting their settings.

• Background App Refresh allows apps to update data in the background, even when you haven't opened the app, potentially draining the battery.
You can choose to turn off or set to "Wi-Fi" mode for Background App Refresh in Settings → General → Background App Refresh.

• Recommendation: For less frequently used apps such as social media or news apps, turning off this function can help save power.

App developers frequently release updates to improve app performance and battery optimization.
To update apps, go to the App Store, click on your profile picture, scroll down to refresh, and update apps. It's recommended to enable automatic updates but set it to "Wi-Fi only" to avoid using mobile data.

If you're in the habit of closing apps on your iPhone to save battery, you may need to reconsider. According to Apple, keeping apps open actually saves battery. Apple explains that when you see recently used apps, they aren't actually fully opened but are in a standby mode to aid in navigation and multitasking. Apple recommends closing apps only when they are unresponsive.

The optimal operating temperature range for an iPhone is 0°C to 35°C; temperatures higher or lower can affect battery performance. Avoid prolonged exposure to direct sunlight, especially in the summer, and refrain from leaving your iPhone in a hot car. In extremely cold environments, the battery may temporarily fail, but it usually recovers after warming up.

• Extended use of an iPhone can lead to software issues, which can accelerate battery consumption.

• Solution:
o Restart your iPhone every few days to clear cache files and ensure smoother system operation.
o To restart, press and hold the power button + volume button (Face ID models) or hold the power button (Home button models), then slide to power off and power on again.

Low-quality chargers or cables can damage battery health and impact long-term lifespan. It's recommended to choose Apple official or MFi (Made for iPhone) certified chargers and cables. Avoid using inferior fast charging devices, as excessive current can harm the battery.

• If the battery ages, it is likely to cause rapid power consumption, leading to the iPhone frequently heating up. Therefore, checking the iPhone battery health can help you understand the battery's condition and prompt you to replace or repair it in time.

• Here's how to check iPhone battery health: Go to Settings > Battery > Battery Health. Check the "Maximum Capacity" column; if it shows less than 80%, it means your iPhone battery has aged and may require replacement or repair.

• However, if your iPhone's battery health shows less than 80%, even if you use other power-saving methods, it may not completely solve the issue of rapid battery consumption. At this point, the battery's condition is very poor, and it's advisable to consider replacing the battery directly.