# NASA Battery Viewer — Viewer for BM-1 Bluetooth > Bluetooth battery monitor for BM-1 units with customizable display. (iPhone/iPad app by Neverest Limited.) - Source: https://appshunter.io/ios/app/nasa-battery-viewer/id1441904780 (this page in markdown: same URL + `.md`) - Developer: [Neverest Limited](https://appshunter.io/developer/1360645388) - Category: Productivity, Travel - Price: Free (on sale, was $4.99) - Age rating: 4+ - Requires: iOS 11.3 · 9 MB - Languages: American English - Released: 2018-11-22 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/nasa-battery-viewer/id1441904780/reviews.md ## What is NASA Battery Viewer? The NASA Battery Viewer displays the battery monitor information in a clear and simple way. The app allows you to configure which fields are displayed and where, allowing you to choose the most important field as the primary field. The charging/discharging display field will appear in red when discharging. The app also allows you to set the unit's properties (capacity, operating temperature, unit name). The app communicates with the BM-1 unit over Bluetooth LE. It will automatically connect to your BM-1 unit with the configured Bluetooth name. If the unit's name doesn't match any BM-1 units in range will be offered to you so you can choose to connect. The unit rename feature allows you to assign your own name to your BM-1 unit. ## Key features - Customizable display fields - Primary field selection - Charging/discharging indicator - Unit property configuration - Bluetooth LE communication - Automatic device connection - Unit renaming ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/nasa-battery-viewer/id1441904780/reviews.md ### 5/5 — Simple and effective *2022-07-19, version 1.1.1* Although this app is not free, I had seen that there was no free iOS app before I bought the battery monitor. This app works really reliably and has a very clear display. I can get a reliable Bluetooth signal within 10m (not tried further than on my boat and nearby on the pontoon. Recommended ### 5/5 — Excellent *2019-07-06, version 1.0.3* App does what it says on the tin. No fuss, no problems. It just works. ### 5/5 — Very pleased *2019-06-08, version 1.0.3* Nice app and very good support 10 out of 10 ## Frequently asked questions about NASA Battery Viewer ### What devices is NASA Battery Viewer compatible with? NASA Battery Viewer is compatible with iPhone, iPad, and iPod devices. It utilizes Bluetooth LE to communicate with compatible battery monitoring units. ### How does NASA Battery Viewer connect to my device? The app communicates with BM-1 units over Bluetooth LE. It automatically attempts to connect to your configured BM-1 unit. If the name doesn't match, it will present a list of available units to choose from. ### Can I customize the information shown in NASA Battery Viewer? Yes, you can configure which battery monitor fields are displayed and their placement. This allows you to prioritize the most important information as your primary field. ### Does NASA Battery Viewer show the charging status? Yes, the charging/discharging display field will appear in red when the unit is discharging, providing a clear visual indicator of the battery's current state. ### Can I rename my BM-1 unit using NASA Battery Viewer? Yes, the unit rename feature allows you to assign your own custom name to your BM-1 unit, making it easier to identify and manage multiple devices. ### What are the unit properties I can configure in NASA Battery Viewer? You can set properties for the unit, including its capacity, operating temperature, and unit name, allowing for personalized monitoring. ### How often is NASA Battery Viewer updated? The app was last updated on January 15, 2026, with version 1.2.3. This indicates a recent update, suggesting ongoing support and potential for future improvements. ### Does NASA Battery Viewer have ads? No, NASA Battery Viewer is ad-free. It does not contain advertisements, providing an uninterrupted user experience. ## Version history (last 5 releases) ### 1.2.3 — 2026-01-15 Fixes a bug observed on recent iOS versions that caused the battery data parse to fail. This version addresses that issue. ### 1.2.2 — 2026-01-06 Internal optimisations ### 1.2.1 — 2022-10-03 Fixes an issue that was seen on some devices: incorrect large capacity percentages. ### 1.2.0 — 2022-09-07 This new version detects whether you have connected to the original lead or lithium monitor unit. If connected to the lithium monitor there are a slight differences in how settings are displayed and a synchronise (set full) button is added. ### 1.1.1 — 2021-05-26 Support for iPad split screen mode ## Apps similar to NASA Battery Viewer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Chatbot App: AI Assistant](https://appshunter.io/ios/app/chatbot-app-ai-assistant/id6711347033) | 4.0 (168) | Free | Productivity | | [Agenda: Notes meets Calendar](https://appshunter.io/ios/app/agenda-notes-meets-calendar/id1370289240) | 4.4 (324) | Free | Productivity | | [Family Organizer with AI](https://appshunter.io/ios/app/family-organizer-with-ai/id1358798014) | — | Free | Productivity | | [Making Places](https://appshunter.io/ios/app/making-places/id6477859681) | — | Free | Productivity | | [Canary Mail – AI Email](https://appshunter.io/ios/app/canary-mail-ai-email/id1155470386) | 4.5 (8,645) | Free | Productivity | | [Week Calendar - Smart Planner](https://appshunter.io/ios/app/week-calendar-smart-planner/id381059732) | 4.4 (10,147) | Free | Productivity | ## More apps by Neverest Limited - [NASA Navtex Viewer](https://appshunter.io/ios/app/nasa-navtex-viewer/id1360645389) - [RPN Memory Calculator](https://appshunter.io/ios/app/rpn-memory-calculator/id1398878075) All apps by Neverest Limited: https://appshunter.io/developer/1360645388 --- *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 2026-06-01.*