# BAT Check vs ETERNAL LITHIUM

BAT Check and ETERNAL LITHIUM are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for BAT Check against 5.0 for ETERNAL LITHIUM. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BAT Check ships an update every 2 months, ETERNAL LITHIUM every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BAT Check | ETERNAL LITHIUM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/bat-check/id1531666146/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/eternal-lithium/id6748685410/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 11 MB | 42 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [海波 刘](https://appshunter.io/developer/1528836993) | [Nanchang Yepai Technology Co., Ltd.](https://appshunter.io/developer/1503296093) |

## What reviewers say

### BAT Check

[App page](https://appshunter.io/ios/app/bat-check/id1531666146)

Monitor your phone's battery directly from the BMS. View detailed information like State of Charge, Voltage, Current, and Power. Access alarms, protection settings, and important parameters for battery management.

**Highlights:** Real-time battery monitoring, Displays battery connection model (Single, Parallel, Series), Detailed dashboard with SOC, Voltage, Current, Temperature, Status tab for alarms and BMS protection, Parameter tab for import settings, Bluetooth 5.0 connectivity

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ETERNAL LITHIUM

[App page](https://appshunter.io/ios/app/eternal-lithium/id6748685410)

This platform provides military-grade operational intelligence for lithium power systems. It transforms real-time data into enhanced safety and performance control through AI-powered tactics, cross-domain energy tracking, and cell defense.

**Highlights:** AI-powered State of Charge prediction, Cross-domain energy flow tracking, Sentinel cell defense and threat alerts, Auto-calibration for extreme temperatures, 10-second threat mapping, Remote countermeasures via Triad Response Network, ISO 21782 compliance auditing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BAT Check free?

BAT Check is free to download, with no in-app purchases.

### Is ETERNAL LITHIUM free?

ETERNAL LITHIUM is free to download, with no in-app purchases.

### Which has better reviews, BAT Check or ETERNAL LITHIUM?

BAT Check and ETERNAL LITHIUM are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do BAT Check or ETERNAL LITHIUM have ads?

Neither BAT Check nor ETERNAL LITHIUM shows ads.

### Which is updated more often, BAT Check or ETERNAL LITHIUM?

BAT Check ships an update every 2 months, and ETERNAL LITHIUM every 3 months. Most recently, BAT Check was updated on November 3, 2026 and ETERNAL LITHIUM on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*