# Multi-Batt Mon — BM3 > Manage and monitor multiple 12V vehicle batteries and track expenses. (iPhone/iPad app by Shenzhen Amoeba New Energy Co., Ltd..) - Source: https://appshunter.io/ios/app/multi-batt-mon/id1345741752 (this page in markdown: same URL + `.md`) - Developer: [Shenzhen Amoeba New Energy Co., Ltd.](https://appshunter.io/developer/978609032) - Category: Utilities - Price: $9.99 - Rating: 3.30/5 from 8 App Store ratings · 39 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 16 MB - Languages: American English, Chinese (Simplified, China) - Released: 2018-02-07 - Data updated: 2026-08-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/multi-batt-mon/id1345741752/reviews.md ## What is Multi? Multi-Battery Monitor(BLE) is a vehicle battery management software, which is compatible with last generation product BM2. It can support 4 different devices connection at one time, conveniently manage multi 12V vehicle battery. Data stored permantly and can be exported or shared by email. User can receive notification when get close to device. What's more, it has trip record and vehicle expense management function. ## Key features - Monitor multiple 12V vehicle batteries - Supports 4 device connections - Permanent data storage - Data export and sharing - Trip record tracking - Vehicle expense management - Proximity notifications ## Chart rankings - #187 in Top Paid · Utilities (US App Store) ## Recent user reviews (10 of 39) All indexed reviews: https://appshunter.io/ios/app/multi-batt-mon/id1345741752/reviews.md ### 2/5 — No lithium *2026-06-25, version 3.2.2* Should have better support for lithium batteries ### 1/5 — iPhone 16 Pro Max Absturz *2024-09-29* Seit ich ein iPhone 16 mit iOS 18 nutze, stürzt die App nach dem Start, während dem Connect Versuch, immer ab. Vorher war die App absolut top! ### 4/5 — iOS 17 Bug *2023-12-01, version 3.2.0* Will only when when setting phone to 24hr time. ### 4/5 — iOS17 Bug Work around *2023-11-30* As recommended by a different app, setting 24Hr time brings back the functionality lost with the iOS17 upgrade. ### 1/5 — It used to work *2023-11-29, version 3.2.0* But now doesn’t. Free version still works but this version keeps unsuccessfully update firmware. Developer unresponsive ### 3/5 — Works *2023-09-01, version 3.1.0* It works pretty good, but as of lately the cranking test, charging test, trip, and my report buttons don’t work. When you push them, the app says synchronizing data and never does anything. ### 1/5 — Disappointing *2023-05-01, version 3.1.0* App doesn’t work, paid a lot for monitor and then for app, worked for 10 minutes then stopped working and haven’t been able to fix, no response from IT support either. ### 2/5 — Version update *2022-07-05* ..i got two bm2.. I was able to upload the v8 only on one ### 4/5 — Works great for me with 3 batteries *2022-06-01, version 3.0.2* Great solution for monitoring car batteries. I have three EV's, two of which are famous for dead 12v batteries. With this I can only quickly do an instant voltage check but see how the sleeping EV is drawing 12v power continuosly with periodic recharge spikes from the HV battery. Very educational. Docs are adequate. ### 4/5 — Great simple app *2022-05-15* I would have liked to have seen some more useful features in the app. ## Frequently asked questions about Multi ### What does Multi-Batt Mon do? Multi-Batt Mon is a vehicle battery management application that allows you to monitor multiple 12V vehicle batteries simultaneously. It also offers features like trip recording and vehicle expense management. ### What are the key features of this app? Key features include the ability to connect and monitor up to four different devices at once, permanent data storage with export and sharing options, proximity notifications, trip record tracking, and vehicle expense management. ### Is Multi-Batt Mon free to use? Yes, based on the provided information, the application is free to use and does not appear to have in-app purchases or advertisements. ### What kind of vehicles can I monitor with this app? The app is designed for managing 12V vehicle batteries and is compatible with the BM2 product. It's suitable for any vehicle that uses 12V batteries and can be managed through the compatible hardware. ### How can I use this app for expense tracking? The app includes a vehicle expense management function. This allows you to log and track various expenses related to your vehicles, helping you stay organized with your automotive costs. ## Version history (last 5 releases) ### 3.2.2 — 2025-06-11 Modify the details of the itinerary trajectory ### 3.2.1 — 2025-02-25 Modify details ### 3.2.0 — 2023-11-01 Add iWatch version support ### 3.1.0 — 2022-11-21 1. Optimize the details of "Syncing" for Bluetooth connection 2. Modify the problem that the latest startup data cannot be received 3. Add new device compatible ### 3.0.2 — 2022-05-19 Battery custom type add "Reset" function ## Apps similar to Multi | App | Rating | Price | Category | | --- | --- | --- | --- | | [Battery Monitor BM2](https://appshunter.io/ios/app/battery-monitor-bm2/id1115492033) | 4.1 (59) | Free | Utilities | | [Battery Life - check runtimes](https://appshunter.io/ios/app/battery-life-check-runtimes/id1080930585) | 4.6 (33,634) | Free | Utilities | | [Battery Widget 2.0](https://appshunter.io/ios/app/battery-widget-20/id1561658854) | 3.9 (47) | $7.99 | Utilities | | [Battery Widget: CPU x Monitor](https://appshunter.io/ios/app/battery-widget-cpu-x-monitor/id1571029388) | 4.4 (1,319) | Free | Utilities | | [Battery HD+](https://appshunter.io/ios/app/battery-hd-plus/id331453283) | 4.5 (2,716) | Free | Utilities | | [Battery HD+ Pro](https://appshunter.io/ios/app/battery-hd-plus-pro/id328670983) | 4.6 (443) | $3.99 | Utilities | ## More apps by Shenzhen Amoeba New Energy Co., Ltd. - [Batteriemonitor](https://appshunter.io/ios/app/batteriemonitor/id1271684294) - [WiFi Smart Endoscope](https://appshunter.io/ios/app/wifi-smart-endoscope/id1569752620) - [Smart Battery 24V](https://appshunter.io/ios/app/smart-battery-24v/id6449736747) - [Powerful BMS-Bussiness](https://appshunter.io/ios/app/powerful-bms-bussiness/id6471482461) - [ANCEL IR](https://appshunter.io/ios/app/ancel-ir/id6497227408) All apps by Shenzhen Amoeba New Energy Co., Ltd.: https://appshunter.io/developer/978609032 --- *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 2026-08-25.*