Battery Master 12V

Shenzhen Leagend Optoelectronics Co., Ltd. Utilities iPhoneiPadiPod touch

Battery Master 12V is a free Utilities app for iPhone and iPad by Shenzhen Leagend Optoelectronics Co., Ltd. Rated 3.4/5 from 5 ratings. Requires iOS 15.6.

Rating: 3.4; 5 ratings
Price: Free; on the App Store
Size: 39 MB; Age 4+
Updated: Mar 30; 2026 · v1.6.4

Download on theApp Store See alternatives

Screenshots

About Battery Master 12V

Battery Master is the detection tool for lead acid battery. By installed on battery, it can intelligently test battery CCA and health condition, calculate battery available use life based on temperature and CCA data sheet. When phone is close to device, the app will automatically obtain battery test result. Also, user can alternatively test battery health, cranking system and charging system. All saved history test results can be shared and printed out.

Ratings & reviews

3.4

5 ratings

5 ★ 40% 4 ★ 0% 3 ★ 40% 2 ★ 0% 1 ★ 20%

What’s new

Version 1.6.4 · Updated March 30, 2026

1. New support for iOS 26 has been added.

App privacy

The developer, Shenzhen Leagend Optoelectronics Co., Ltd., reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

Battery Master 12V is a free Utilities app for iPhone, iPad and iPod touch, developed by Shenzhen Leagend Optoelectronics Co., Ltd. It is rated 3.4 out of 5 from 5 ratings on the App Store, requires iOS 15.6 or later, is 39 MB to download and is available in 5 languages. It was first released on September 20, 2019 and last updated on March 30, 2026.

Category: Utilities
Rating: 3.4 / 5 (5 ratings)
Price: Free
Version: 1.6.4
Size: 39 MB
Requires: iOS 15.6 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, French, German, Chinese, Spanish
Age rating: 4+
Released: September 20, 2019
Last updated: March 30, 2026
Developer: Shenzhen Leagend Optoelectronics Co., Ltd.

View on the App Store

Build an app like Battery Master 12V

Get a ready prompt for Claude Code, Cursor or Lovable: its features and business model, and what its users complain about, for an original app of your own.

Make the prompt →

Is this your app?

Give it a free website

Landing page, privacy policy and app-ads.txt, generated from your store listing.

Create it free

Alternatives to Battery Master 12V

Looking for apps like Battery Master 12V? Here are 6 similar apps on the App Store. The highest rated is BT1000 (5.0/5), and all 6 are free to download.

Battery Master 12V vs. alternatives
App	Rating	Price	Last updated	Compare
Battery Master 12V	3.4 / 5 (5 ratings)	Free	March 30, 2026
intAct Battery Check	–	Free	Dec 5, 2025	Compare
Remote Battery Monitor+	4.6 / 5 (7)	Free	Jun 11, 2025	Compare
BT1000	5.0 / 5 (1)	Free	Aug 28, 2026	Compare
Battery Health - Charge Saver	4.4 / 5 (7)	Free	Jul 3, 2025	Compare
節電Battery Life for iPhone	4.5 / 5 (20)	Free	Nov 22, 2023	Compare
BatteryDisplay	4.5 / 5 (2)	Free	Apr 23, 2024	Compare

Compare Battery Master 12V with the top alternatives: ratings, updates, ASO score and keyword gaps →