EJBMS PRO vs HaiDi Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EJBMS PRO
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The Apps main feature is to monitor the details of the E&J Lithium batteries. It can monitor multiple batteries at the same time, showing the main data details after series or parallel, showing details of each battery. Re-nameable each battery pack and auto-connect. The Phone via Bluetooth connectivity will monitor the following information from the battery. Battery Capacity Battery Voltage Battery Current (Amps) Battery State of Charge (SOC) Battery Status Individual Cell Voltage Battery Temperature Battery Cycles Please Note: Only one mobile device can connect to the battery at any one time. If you wish to connect a second device to the battery, you must close the program on the first device. This app is only applicable to the E&J Lithium batteries and will not work with any other brand/type of Bluetooth battery monitoring system, nor will any other branded app work with the E&J lithium battery.
HaiDi Pro
Monitor and manage your lithium battery packs via Bluetooth. View detailed status information, set protection parameters, and receive real-time alerts for abnormalities. Access historical alarm records for troubleshooting.
- Connect via Bluetooth
- Read battery pack status
- View voltage, current, temperature
- Set protection parameters
- Receive abnormality alarms
- Historical alarm records
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1. Connect the BMS Bluetooth module through the mobile phone Bluetooth to read the status information of the lithium battery pack; 2. You can view the voltage, total voltage, remaining power, real-time current, cycle times, temperature, pressure difference, etc. of each string of the battery pack, and you can set the protection parameters according to your own needs; 3. An alarm is issued when the battery pack is abnormal, which is convenient for users to check and repair, and provides historical alarm records;
Screenshots
Verdict
The clearest difference is update cadence: HaiDi Pro at every 2 months against EJBMS PRO's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EJBMS PRO ships an update every 11 months, HaiDi Pro every 2 months. The most recent releases landed on September 20, 2026 and October 3, 2026 respectively.
| Parameter | EJBMS PRO | HaiDi Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 43 MB | 122 MB |
| Age rating | 4+ | 17+ |
| Developer | E&Jtechnology | Haidi Energy Tehcnogy Co., Ltd |
In-app purchases
EJBMS PRO
No in-app purchases
HaiDi Pro
No in-app purchases









