# Battery Master 12V — user reviews

> 3 indexed App Store user reviews of Battery Master 12V by Shenzhen Leagend Optoelectronics Co., Ltd., rated 3.40/5 from 5 ratings.

- Source: https://appshunter.io/ios/app/battery-master-12v/id1480710112/reviews
- App overview in markdown: https://appshunter.io/ios/app/battery-master-12v/id1480710112.md
- Rating breakdown: 5★ 2 · 4★ 0 · 3★ 2 · 2★ 0 · 1★ 1

## Most critical reviews (3 lowest-rated)

### 1/5 — Kein Stern!

*2021-07-15*

App funktioniert nicht, es lässt sich keine Batterie anlegen, bzw. einrichten. Gerät ist damit unbrauchbar!!!!!

### 2/5 — Naja

*2022-02-08*

Ausbaufähig, zeigt krumme Werte wie zum Bsp -12 Grad bei tatsächlichen 10 Grad Plus

### 3/5 — Unlike other monitors, no bt serial detection

*2020-09-04*

Unlike other monitors, no bt serial detection

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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 2026-08-18.*