# Projecta BM500-BT

> Battery monitoring kit displaying current, voltage, SOC, and time remaining. (iPhone/iPad app by TBB Power Co., Ltd.)

- Source: https://appshunter.io/ios/app/projecta-bm500-bt/id1619339633 (this page in markdown: same URL + `.md`)
- Developer: [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 24 MB
- Languages: English
- Released: 2022-04-16
- Data updated: 2026-07-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/projecta-bm500-bt/id1619339633/reviews.md

## What is Projecta BM500?

TBB'battery monitor kit is composed by a battery shunt and a monitor which allow the user to fully understand his/her battery. Here is some quick facts of this kit:
1) Measurement current is up to 500A
2) Is able to work with battery (or battery bank) 12Vdc, 24Vdc or 48Vdc
3) Compatible with AGM, GEL or LFP battery
4) An elegant design monitor to display battery information such as current, voltage, SOC, time remaining etc.
5) The monitor could be installed at any location where with easy access to users
6) Measurement accuracy:
    Current: +/- 0.4%
    Voltage: +/- 0.3%

## Key features

- Real-time current monitoring up to 500A
- Supports 12V, 24V, or 48V DC battery systems
- Compatible with AGM, GEL, and LFP batteries
- Displays voltage, SOC, and time remaining
- Accurate current (+/- 0.4%) and voltage (+/- 0.3%) measurements

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/projecta-bm500-bt/id1619339633/reviews.md

### 1/5 — Not enough info

*2024-09-12, version 1.0.3*

Would be nice if it monitored incoming power from the solar panels and input and discharge amperage.  This app is not very infomative.

### 3/5 — History

*2023-01-14, version 1.0.2*

It would be nice if it’s held some history of draw and charge like other Bluetooth monitors do

## Frequently asked questions about Projecta BM500

### What battery types is Projecta BM500-BT compatible with?

Projecta BM500-BT is compatible with AGM, GEL, and LFP battery types. This ensures broad usability for various battery system configurations.

### What is the measurement accuracy of Projecta BM500-BT?

The monitor provides accurate measurements with a current accuracy of +/- 0.4% and a voltage accuracy of +/- 0.3%. This allows for precise tracking of your battery's performance.

### What battery voltages can Projecta BM500-BT work with?

Projecta BM500-BT can work with battery systems of 12Vdc, 24Vdc, or 48Vdc. This versatility makes it suitable for a range of applications.

### What information does the Projecta BM500-BT monitor display?

The monitor displays essential battery information including current, voltage, state of charge (SOC), and estimated time remaining. This provides a comprehensive overview of your battery's status.

### How often is Projecta BM500-BT updated?

The latest version of Projecta BM500-BT is 1.0.4, which was last updated on 2025-11-17. Updates are released periodically to improve functionality and reliability.

### What devices does Projecta BM500-BT support?

Projecta BM500-BT is supported on iPhone and iPod devices. It is designed for mobile use on these platforms.

### Does Projecta BM500-BT have ads?

No, Projecta BM500-BT does not contain advertisements. The application is ad-free, providing an uninterrupted user experience.

### What is the age rating for Projecta BM500-BT?

Projecta BM500-BT has an age rating of 4+. This indicates it is suitable for users of all ages.

## Version history (last 5 releases)

### 1.0.5 — 2026-06-22

Bug fixes and performance improvements.

### 1.0.4 — 2025-11-17

Bug fixes and performance improvements.

### 1.0.3 — 2023-11-28

Fix several bugs.

### 1.0.2 — 2022-09-30

Optimization Features

### 1.0.1 — 2022-05-30

Optimization Features

## Apps similar to Projecta BM500

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [BMPRO ProSmart](https://appshunter.io/ios/app/bmpro-prosmart/id1559819754) | 1.0 (1) | Free | Utilities |
| [MyBluee](https://appshunter.io/ios/app/mybluee/id6445804361) | — | Free | Utilities |
| [SIMARINE](https://appshunter.io/ios/app/simarine/id1587666762) | — | Free | Utilities |
| [INVICTA Lithium](https://appshunter.io/ios/app/invicta-lithium/id1196313655) | — | Free | Utilities |
| [KA Lithium](https://appshunter.io/ios/app/ka-lithium/id6480479006) | — | Free | Utilities |
| [iTechworld Connect](https://appshunter.io/ios/app/itechworld-connect/id6502434668) | — | Free | Utilities |

## More apps by TBB Power Co., Ltd

- [REGO G2](https://appshunter.io/ios/app/rego-g2/id1097435884)
- [REGO G1](https://appshunter.io/ios/app/rego-g1/id1434488006)
- [Sies](https://appshunter.io/ios/app/sies/id1434490106)
- [BWI-PM400](https://appshunter.io/ios/app/bwi-pm400/id1436461203)
- [旌航房车I](https://appshunter.io/ios/app/i/id1440003145)
- [戴德隆翠](https://appshunter.io/ios/app/id1454360674)

All apps by TBB Power Co., Ltd: https://appshunter.io/developer/1089239531

## Related topics

[bm500](https://appshunter.io/ios/topics/bm500) · [tbb bm500](https://appshunter.io/ios/topics/tbb-bm500)

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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 2026-07-05.*