# ANCEL BM300 Pro — ANCEL BM300 Pro

> Bluetooth battery monitoring for 6V, 12V, 24V systems, tracking voltage and start/stop times. (iPhone/iPad app by OBDSPACE TECHNOLOGY CO.,LTD.)

- Source: https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644 (this page in markdown: same URL + `.md`)
- Developer: [OBDSPACE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1434956144)
- Category: Utilities
- Price: Free
- Rating: 2.80/5 from 21 App Store ratings · 18 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 68 MB
- Languages: American English, Arabic, Czech, Finnish, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål and 7 more
- Released: 2024-01-29
- Data updated: 2026-07-23
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644/reviews.md

## What is ANCEL BM300 Pro?

ANCEL BM300 Pro is an application for monitoring 6V, 12V, and 24V batteries.
It can simultaneously monitor the voltage of four batteries.
It helps users fully understand the battery by testing the startup and charging system voltage.
It can accurately record the time when a car starts and stops.
All data can be displayed on the phone through Bluetooth.
Easy to manage vehicle battery power

## Key features

- Monitors 6V, 12V, 24V batteries
- Simultaneous monitoring of four batteries
- Tests startup and charging system voltage
- Records vehicle start/stop times
- Bluetooth data display on phone
- Vehicle battery power management

## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644/reviews.md

### 1/5 — Terrible Bluetooth

*2026-06-27, version 1.1.3*

Expensive paperweight, Bluetooth does not connect to my iPhone or Android phones, useless.  I’ve reinstalled both the app and the device several times on both my phones and no resolution.  AI says a lot of people have lots issues and complaints about the weak Bluetooth on this model.

### 4/5 — Works very well

*2026-04-18, version 1.1.2*

I have used this device for over one month. I had trouble auto-pairing only once, but that was probably user error. The device auto pairs if you walk next to the car and just wait for a while. The app seamlessly fetches new data and merges it with data that is already on the phone, so you get a continuous record of voltage every two minutes for as many days as you want. I AirDrop the exported .xls file onto a Mac and look at it with Numbers. A comma-delimited “.csv” plain text file would be a more flexible option for just the voltage, SOC, and temperature data. However, the report has several separate tables, so an .xls file may be necessary.

I do not like their privacy policy because they collect (and almost surely sell) GPS assisted trip information tied to the serial number of your device. I have set the iPhone Settings (not the app Settings) to not allow GPS for this app, which disables the trip and find your car “features”. The voltage data logging, which is all I need, still works perfectly. Five stars if they change their privacy policy.

### 5/5 — Works great!

*2026-04-01, version 1.1.2*

I’m not sure why this app has a low rating – it does everything it’s supposed to and works great for me at least! Every time I walk by my vehicle, the app updates and keeps me apprised of the state of my battery, which is exactly what I’m looking for. The developer updates the app regularly so I’m not sure what more we could ask for – thanks for a great app!

### 5/5 — Works great for me

*2026-03-27, version 1.1.1*

I don’t know why others have had so many problem but this App works great for me. Whenever I walk by the car the app updates. Maybe they aren’t hanging around long enough? It gives me all the data I’m looking for and I can export it out as an xlsx file and email it to myself. Great info. I’m really impressed.

### 1/5 — Disaster

*2026-01-12, version 1.0.10*

Have two devices. It crashes. I am losing data. Have to unplug it, pair it again and start over.
Trying to get the data for the service to show the reason why car is having parasitic draw and can’t. Very disappointing with the device. But very good idea. Something is going with implementation.

### 4/5 — Need features

*2025-10-24, version 1.0.10*

1. THB currency
2. Hybrid fuel consumption 
3. EV consumption

### 3/5 — SoC needs fixing

*2025-10-17, version 1.0.10*

App incorrectly shows SoC 100% while vehicle is running because it is reading alternator voltage and not battery SoC.

### 1/5 — Разочарован

*2025-10-07, version 1.0.10*

Ожидал лучшей работы, как приложение, так и устройства!
Отсутствует данные расстояния пройденное автомобилем! 
С электромобилем не работает!

### 5/5 — Wish…

*2025-10-06, version 1.0.10*

Please develop this application so that it can be used or displayed on Apple CarPlay.
At the very least, it should be available as a widget, as supported by iOS 26.0

### 5/5 — Fantastic

*2025-10-03, version 1.0.10*

Great device to keep an eye on your batteries state. No surprises one morning.

## Frequently asked questions about ANCEL BM300 Pro

### What devices is ancel BM300 Pro compatible with?

ancel BM300 Pro is available for watch, iPhone, and iPod devices. It utilizes Bluetooth to display data on your phone.

### How often is ancel BM300 Pro updated?

The latest version, 1.1.2, was released on March 31, 2026. While specific update frequency isn't detailed, the app has seen updates since its initial release on January 29, 2024.

### What is the age rating for ancel BM300 Pro?

ancel BM300 Pro has an age rating of 4+, making it suitable for a wide range of users.

### What types of batteries can ancel BM300 Pro monitor?

The application is designed to monitor 6V, 12V, and 24V batteries. It can simultaneously monitor the voltage of up to four batteries.

### Does ancel BM300 Pro offer insights into battery health?

Yes, it helps users understand their battery by testing the startup and charging system voltage. It also accurately records the time when a car starts and stops.

### How does ancel BM300 Pro display battery data?

All recorded data, including voltage readings and start/stop times, can be displayed on your phone through a Bluetooth connection.

### What are the main benefits of using ancel BM300 Pro?

The primary benefits include easy management of vehicle battery power, detailed voltage monitoring, and accurate tracking of vehicle operational times, all accessible wirelessly.

### Is ancel BM300 Pro free to use?

Yes, ancel BM300 Pro is available for free download and use. It does not have in-app purchases or advertisements.

## Version history (last 5 releases)

### 1.1.5 — 2026-07-20

Modify details

### 1.1.4 — 2026-07-14

Modify details

### 1.1.3 — 2026-04-29

Solve the problem of invalid setting parameters

### 1.1.2 — 2026-03-31

Modify details

### 1.1.1 — 2026-03-12

Add a low voltage alarm function

## Apps similar to ANCEL BM300 Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [WattCycle](https://appshunter.io/ios/app/wattcycle/id6739477367) | 1.9 (41) | Free | Utilities |
| [Smart Battery 24V](https://appshunter.io/ios/app/smart-battery-24v/id6449736747) | 2.0 (1) | Free | Utilities |
| [Battery Monitor BM2](https://appshunter.io/ios/app/battery-monitor-bm2/id1115492033) | 4.2 (52) | Free | Utilities |
| [IONIQ 5 Companion](https://appshunter.io/ios/app/ioniq-5-companion/id6761347502) | 4.7 (47) | $12.99 | Utilities |
| [Battery Tracker Plus](https://appshunter.io/ios/app/battery-tracker-plus/id6475273387) | 2.7 (7) | Free | Utilities |
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## More apps by OBDSPACE TECHNOLOGY CO.,LTD

- [ANCEL](https://appshunter.io/ios/app/ancel/id1434956145)
- [ANCEL Battery Monitor](https://appshunter.io/ios/app/ancel-battery-monitor/id1466046951)
- [ANCEL BT500](https://appshunter.io/ios/app/ancel-bt500/id1507325225)
- [ANCEL BM200](https://appshunter.io/ios/app/ancel-bm200/id1669132898)
- [Ancel Trucker](https://appshunter.io/ios/app/ancel-trucker/id6444299282)
- [HINOY](https://appshunter.io/ios/app/hinoy/id6444881783)

All apps by OBDSPACE TECHNOLOGY CO.,LTD: https://appshunter.io/developer/1434956144

## Related topics

[ancel bm300 pro](https://appshunter.io/ios/topics/ancel-bm300-pro) · [ancel battery monitor](https://appshunter.io/ios/topics/ancel-battery-monitor) · [ancel bd310](https://appshunter.io/ios/topics/ancel-bd310) · [ancel bm200](https://appshunter.io/ios/topics/ancel-bm200) · [fogstar pro](https://appshunter.io/ios/topics/fogstar-pro) · [ancel](https://appshunter.io/ios/topics/ancel)

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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 2026-07-23.*