Battery Tracker

Battery Tracker is more than just a battery percentage display.

It's your personal battery coach, helping you understand your charging habits by tracking charge and discharge records, and discover ways to extend your battery's lifespan.

■ Real-time Battery Monitor

• At-a-glance view of battery level, charging, discharging, and full charge status with a large gauge

• Displays charging speed (%/h) and speed rating (Slow, Normal, Fast, Super Fast)

• Shows estimated time to target charge and full charge

• Displays discharge speed (%/h) while using the battery

• Real-time chart of recent battery level changes

• Provides battery status and charging tips for different charge levels

• Shows current charging session's start time, charged amount, and elapsed time

■ Automatic Charge & Discharge Logging

• Automatically records charging and battery usage as sessions

• Summarizes start/end times, battery levels, and duration

• Compares estimated vs. actual time to reach target charge

• View battery level change graphs in session details

• Name your chargers to differentiate them

• Records persist even if you close and reopen the app; all data is stored only on your device

■ Battery Analysis (Premium)

• Number of observed cycles calculated from charging records

• Recent average charging speed (%/h)

• Long-term charging speed trend graph for 7 days, 30 days, and all time

• Compare named chargers/cables by charge amount per hour (%/h)

• Estimated remaining usage time based on average discharge speed (Free)

■ Smart Notifications

• Charging cable disconnected alert (Free)

• Target charge level alert: Choose from 80, 85, 90, 95, 100% (Premium)

• Low battery alert: Set your own threshold between 5-25% (Premium)

• Do Not Disturb time settings, such as bedtime (Premium)

※ Notifications work while the app collects battery information. Due to iOS background policies, notifications may not be delivered immediately after the app is completely closed.

■ Charging Tools

• 5-minute real-time extended chart

• Custom charging plans tailored to your goals

• Charging speed diagnostics and battery care guide

• Premium users can use anytime; Free users can access for the current session by watching an ad

■ Data Export

• Export charging records as CSV files (Excel compatible)

• Export sessions and measurement samples as JSON files

• Option to delete all saved records at once

■ Battery Tracker Premium

• Remove all ads

• Observed cycles, long-term charging speed trends, charger/cable speed comparison

• Target charge level & low battery alerts, Do Not Disturb times

• Instant access to 5-minute real-time chart, custom charging plans, charging speed diagnostics

• Offers 1-month, 3-month, 6-month, 12-month auto-renewing subscriptions and a lifetime purchase option

■ Free Features

• Real-time battery monitor, charging speed, estimated full charge time

• Charge/discharge records and session details

• Estimated remaining usage time

• Cable disconnected alert

• CSV & JSON export

■ Privacy Policy

• Battery records and settings are stored only on your device.

• We do not transmit or sell your charge/discharge records to servers.

■ Please Note

• iOS only provides battery level and charging status information.

Temperature, voltage, current, power (W), and battery maximum capacity/health cannot be displayed due to iOS policy, and this app does not offer these features.

• Charging speed and estimated times are calculated estimates based on battery level changes and may vary depending on screen usage, heat generation, battery protection features, and cable/charger quality.

• The more charging sessions you record, the more accurate the analysis becomes.

• App-specific battery usage is not provided.

- Terms of Use: https://drendrendren.com/terms?app=battery-tracker

- Privacy Policy: https://drendrendren.com/privacy?app=battery-tracker

Healthy charging habits start with good records.