# BAT-BMS

> Wireless Bluetooth monitor for smart lithium batteries, displaying key performance data. (iPhone/iPad app by Shenzhen Grenergy Technology Co.,Ltd..)

- Source: https://appshunter.io/ios/app/bat-bms/id1611741274 (this page in markdown: same URL + `.md`)
- Developer: [Shenzhen Grenergy Technology Co.,Ltd.](https://appshunter.io/developer/1602312075)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 3.20/5 from 61 App Store ratings · 29 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 9 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2022-02-26
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bat-bms/id1611741274/reviews.md

## What is BAT?

This application is only suitable for Smart Bluetooth lithium battery.

FEATURES

1. No need for a separate battery monitor.

2. Wirelessly connect to each battery from your phone.

3. Track Cycle Life on each battery.

4. Display SOC, voltage, charge and discharge current, cycle life, cell voltage and temperature.

5. The phone requires bluetooth5.0 with bluetooth low energy functions.

6. Operating distance: less than or equal to 15 meters

7. The APP can connect multiple batteries at a time, and the data of another battery can be viewed by switching between left and right pages.

8. If you want to connect this battery with another mobile phone,pls exit this app program from the first mobile phone.

## Key features

- Wireless Bluetooth connection
- Track cycle life
- Display SOC, voltage, current
- Monitor cell voltage and temperature
- Connect to multiple batteries

## Recent user reviews (10 of 29)

All indexed reviews: https://appshunter.io/ios/app/bat-bms/id1611741274/reviews.md

### 2/5 — Doesn’t maintain operational

*2026-07-24*

A few months ago it stopped allowing me to toggle the charge and discharge on and off. Luckily it was all on when this occurred. They addressed the issue but add a password. That is a nice feature but they have not provided the password so the app is still useless to me. The app developer has not responded to my emails.

### 2/5 — This has been difficult to use

*2026-07-13*

Now this app requires a password to change settings.  There has not been one previously and there is no way to request a new one

The batteries drain separately one is at 1% and the other at 99%. All the time

### 3/5 — Password?

*2026-07-12*

All of a sudden you need a password to turn on and off your battery. And I don’t know how to make a password. And or where a preset password is.

### 1/5 — Can’t use golf cart after update

*2026-07-10*

After recent update now I am unable to use my golf cart.

### 1/5 — App update 7/9/26

*2026-07-09*

Ever since the app update to fix some bugs I have not been able to use my battery.  The functions in the app do not work to switch the battery on and off

### 1/5 — Give us what we want!!!

*2026-07-08*

The app developers removed the ability to toggle “charge” and “discharge” switches. Now it’s one of the worst BMS apps available. Save yourself some hassle and download a different app. Or maybe developers will eventually revert to the last software version that has NO issues.

### 1/5 — On/Off switch

*2026-07-07*

Removed the ability to turn off the battery.  It was an awesome security feature that is no longer available.  The only downside was that you could not charge while it was off but it kept our equipment safe from theft.

### 3/5 — Doesn't Turn on off my battery

*2026-07-06*

Please if somebody can help me out I cannot turn off or on my battery I was working five for a couple weeks now it just doesn't work I cannot turn off on I reinstalled the app couple times download it again and still the same issue show me the screen only for how much is charged but I won't turn on

### 1/5 — Currently Broken

*2026-07-05*

This app has disabled the ability to toggle the discharge and charge functions on/off. If you have a battery it is currently rendered useless. My golf cart is currently unusable because of this issue. The developer needs to correct this asap or I am going to seek a refund on my $700 battery.

### 2/5 — Update Failed

*2026-07-04*

The app has worked flawlessly until today’s update. Avoid it if you can.

## Frequently asked questions about BAT

### What devices does BAT-BMS support?

BAT-BMS is designed for iPhones and iPods. Your phone must have Bluetooth 5.0 with Bluetooth Low Energy functions to connect.

### How far can BAT-BMS connect to a battery?

The operating distance for BAT-BMS is less than or equal to 15 meters, allowing for convenient wireless monitoring.

### Can BAT-BMS monitor multiple batteries at once?

Yes, BAT-BMS can connect to multiple batteries simultaneously. You can view data from other batteries by switching between left and right pages.

### How do I connect BAT-BMS to a different phone?

To connect BAT-BMS to another mobile phone, you must first exit the app program from the currently connected phone.

### What kind of batteries is BAT-BMS compatible with?

BAT-BMS is specifically designed for smart Bluetooth lithium batteries. It is not suitable for other types of batteries.

### What specific data can I see with BAT-BMS?

You can track State of Charge (SOC), voltage, charge and discharge current, cycle life, cell voltage, and temperature for your batteries.

### How often is BAT-BMS updated?

The latest version of BAT-BMS is 1.1.1, and it was last updated on November 2, 2023. This indicates regular maintenance and potential feature additions.

### What is the user sentiment for BAT-BMS?

BAT-BMS has an average rating of 3.6 stars from 26 ratings. This suggests a generally positive but mixed user reception.

## Version history (last 5 releases)

### 1.1.5 — 2026-08-03

fix some bugs.

### 1.1.4 — 2026-07-10

fix some bugs.

### 1.1.3 — 2026-07-03

fix some bugs

### 1.1.2 — 2026-07-02

fix some bugs.

### 1.1.1 — 2023-11-02

1.Fixed some bugs.

## Apps similar to BAT

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Overkill Solar](https://appshunter.io/ios/app/overkill-solar/id6444233824) | 4.7 (16) | Free | Utilities |
| [Navitas Dashboard](https://appshunter.io/ios/app/navitas-dashboard/id1248027444) | 3.1 (97) | Free | Utilities |
| [DCHOUSE](https://appshunter.io/ios/app/dchouse/id6502391925) | 2.7 (9) | Free | Utilities |
| [BMS Tool](https://appshunter.io/ios/app/bms-tool/id1511343379) | 3.9 (7) | Free | Utilities |
| [SMART BMS](https://appshunter.io/ios/app/smart-bms/id1519968339) | 2.0 (72) | Free | Utilities |
| [Vehicleinfo - All Vahan Detail](https://appshunter.io/ios/app/vehicleinfo-all-vahan-detail/id1319263976) | 4.6 (531) | Free | Utilities |

## More apps by Shenzhen Grenergy Technology Co.,Ltd.

- [OGRPHY](https://appshunter.io/ios/app/ogrphy/id1602312073)

All apps by Shenzhen Grenergy Technology Co.,Ltd.: https://appshunter.io/developer/1602312075

## Related topics

[bat bms](https://appshunter.io/ios/topics/bat-bms) · [lossigy](https://appshunter.io/ios/topics/lossigy) · [lossigy battery](https://appshunter.io/ios/topics/lossigy-battery) · [lithium batteries](https://appshunter.io/ios/topics/lithium-batteries) · [lithium battery app](https://appshunter.io/ios/topics/lithium-battery-app) · [roamer bms](https://appshunter.io/ios/topics/roamer-bms) · [lithium battery monitor](https://appshunter.io/ios/topics/lithium-battery-monitor) · [koonekt kl5](https://appshunter.io/ios/topics/koonekt-kl5) · [lithium battery](https://appshunter.io/ios/topics/lithium-battery) · [rock lithium battery](https://appshunter.io/ios/topics/rock-lithium-battery) · [bms](https://appshunter.io/ios/topics/bms) · [vinesy optima](https://appshunter.io/ios/topics/vinesy-optima) · [battery monitor bluetooth](https://appshunter.io/ios/topics/battery-monitor-bluetooth) · [bkmonitor](https://appshunter.io/ios/topics/bkmonitor) · [ihsan ul haq zia](https://appshunter.io/ios/topics/ihsan-ul-haq-zia) · [tbb bm500](https://appshunter.io/ios/topics/tbb-bm500) · [aribatterytool](https://appshunter.io/ios/topics/aribatterytool) · [pvmobilesuite](https://appshunter.io/ios/topics/pvmobilesuite) · [bmpro odyssey](https://appshunter.io/ios/topics/bmpro-odyssey) · [dstek bms](https://appshunter.io/ios/topics/dstek-bms)

---

*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 2026-08-27.*