Supported Features
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Differentiate Without Color Alone
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Sufficient Contrast
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Reduced Motion
Battery Train
Track Battery Health 24/7
Free · Designed for iPad. Not verified for macOS.
Charging and discharging every single day—how long will your smartphone battery actually last?
Start your day right, completely free of battery anxiety.
Are you managing your battery the right way?
Smartphone batteries inevitably degrade with use.
However, it's hard to tell exactly when it started getting worse, or if its current condition is normal.
Battery Train automatically records every single moment of charging and discharging, allowing you to understand your battery status at a glance.
[Key Features]
▸ Automatic Battery Logging
The app automatically logs your battery status every 5 minutes in the background.
Your history builds up continuously without even having to open the app.
▸ History Graphs
Check your charging and discharging curves with 24-hour, 7-day, and 30-day graphs.
You can see at a glance exactly when your battery drops sharply.
▸ Battery Health Analysis
By analyzing the discharge rate, the app calculates a battery health score.
If your battery health is declining, you can prepare for a replacement in advance.
▸ Smart Charging Alerts
• Immediate alert when the battery drops below your set percentage (e.g., below 20%)
• Alert when reaching your target percentage during charging (e.g., unplug advice at 80%)
Prevent overcharging and deep discharging to extend your battery's lifespan.
▸ Dark Mode Support
Automatically switches between Dark Mode and Light Mode based on your system settings.
[Recommended For]
• Anyone who wants to extend their smartphone's lifespan
• Anyone curious about when their battery drains the most during the day
• Anyone who wants to know the perfect time for a battery replacement
• Anyone looking to fix their overcharging habits
• Anyone experiencing sudden and rapid battery drain
[What is Battery Health Score?]
Battery Train calculates a health score by analyzing your discharge rate over a certain period.
A higher score means your battery is in good condition, while a declining score suggests that battery aging is underway.
[Notification Permission Guide]
Notification permission is required to use the charging alert feature.
You can change this permission at any time in your Settings.
Start managing your battery right now.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Updated Privacy Policy link
- Improved app stability
The developer, JAEMIN LEE, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- JAEMIN LEE
- Size
- 25.7 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2025 drendrendren. All Right Reserved.