# BattAI: Battery health score — Estimated time to 80%

> Estimated time to 80% (iPhone/iPad app by Guan Feng Lai.)

- Source: https://appshunter.io/ios/app/battai-battery-health-score/id6802423998 (this page in markdown: same URL + `.md`)
- Developer: [Guan Feng Lai](https://appshunter.io/developer/1136144960)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 15 MB
- Languages: Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French and 34 more
- Released: 2026-08-26
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/battai-battery-health-score/id6802423998/reviews.md

## What is BattAI?

BattAI
• BattAI uses five values from public iOS APIs: battery level, charge state, Low Power Mode, whole-device thermal state, and time. Other results are calculated from those readings or added by you. Each detail shows its source and limits.
• BattAI has no account, telemetry, ads, or network requests. Data stays on this device, except for a minimal feature-limited snapshot sent directly to your paired Apple Watch. Sampling is limited, analysis runs at most every five minutes, estimates use ranges, and missing data stays missing.

Health
• Battery health score
• What shapes the score
• Maximum capacity over time
• Estimated time to 80%

Charging
• Charge care
• Charge range
• Charge rate

Reports
• Create a clear battery report for service, resale, or your own records.
• Full report: the app's charts and text
• The same report saved as a PNG
• All of your data as a plain-text table

Privacy
• No ads, analytics, tracking, third-party SDKs, or internet requests. Data stays here, except for a minimal snapshot sent directly to your paired Apple Watch.
• Public iOS APIs provide battery level, charge state, Low Power Mode, whole-device thermal state, and time. BattAI labels every other result as estimated or provided by you.
• The fixed rules follow established lithium-ion guidance on deep discharge, long periods at high charge, heat, and charge volume. Apple’s 80% maximum-capacity service benchmark is kept separate from BattAI coaching bands. No result promises extra battery life.

Understand your battery over time
• One payment. Lifetime access. No subscription.
• Your purchase is tied to your Apple Account and works on your devices.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $5.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-26

No release notes.

## More apps by Guan Feng Lai

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All apps by Guan Feng Lai: https://appshunter.io/developer/1136144960

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*