# Norsk Guardian — Monitor your boat’s battery > Bluetooth battery monitor for Norsk Lithium marine and sonar batteries. (iPhone/iPad app by Norsk, Inc..) - Source: https://appshunter.io/ios/app/norsk-guardian/id1660544401 (this page in markdown: same URL + `.md`) - Developer: [Norsk, Inc.](https://appshunter.io/developer/1660544403) - Category: Utilities, Travel - Price: Free - Rating: 4.75/5 from 4 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 63 MB - Languages: English - Released: 2023-01-27 - Data updated: 2026-06-07 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/norsk-guardian/id1660544401/reviews.md ## What is Norsk Guardian? The Norsk Lithium Guardian® App provides a Bluetooth Connection to Norsk Lithium Marine Batteries and 14.8V Portable Sonar Batteries allowing you to connect to multiple batteries simultaneously, monitor their health and charging status, and receive real-time alerts to your phone, providing you with complete confidence on and off the water. Conveniently monitor the status of your batteries in real time by tracking the charge, voltage, and remaining runtime. If the indicators are below or above the norm, the application will warn you with a push notification that the battery requires maintenance. Norsk Guardian now includes integrated Live Chat allowing you to connect with US-based customer service a representative. With the Deep Sleep™ feature, you can easily disconnect power from your battery’s terminals, eliminating phantom current draws and preventing fully discharged batteries. This convenient feature saves you from having to manually activate battery disconnect switches, ensuring your batteries remain charged and ready for use. Custom Grouping allows you to create your own naming configuration including group names and names for your individual batteries. Norsk Guardian® will remember battery groups the next time you reconnect. Experience complete confidence on and off the water with Norsk Guardian®. ## Key features - Bluetooth connectivity - Real-time battery monitoring - Charge and voltage tracking - Maintenance alerts - Deep Sleep™ power disconnect - Custom battery grouping ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/norsk-guardian/id1660544401/reviews.md ### 5/5 — Love this app!! *2024-07-12* I absolutely love this app! I use it to check the life on my Norsk 24v 50ah battery I use the battery to power my Newport 180PRO trolling motor for my Hobie PA 360. Knowing how much power I have on my battery and knowing how far I can go and come back on tournament days is game changer. ## Frequently asked questions about Norsk Guardian ### What devices does Norsk Guardian support? Norsk Guardian is available for iPhone, iPad, and iPod. It allows simultaneous connection to multiple Norsk Lithium batteries. ### How does Norsk Guardian help prevent battery discharge? The Deep Sleep™ feature allows you to disconnect power from your battery's terminals remotely, eliminating phantom current draws and preventing fully discharged batteries. ### Can I customize battery names in Norsk Guardian? Yes, Custom Grouping allows you to create your own naming configurations for group names and individual batteries. Norsk Guardian remembers these groups for future reconnections. ### What kind of alerts does Norsk Guardian provide? The app provides real-time push notifications if battery indicators are below or above the norm, warning you that the battery requires maintenance. ### Is Norsk Guardian free to use? Yes, Norsk Guardian is available for free. There are no in-app purchases or subscription fees associated with its use. ### How often is Norsk Guardian updated? The latest version, 2.2.2, was released on May 12, 2026. While specific update frequency isn't detailed, the app has seen recent updates indicating ongoing development. ### Does Norsk Guardian have ads? No, Norsk Guardian does not contain advertisements. It is a free utility app designed for battery monitoring without interruptions. ### What is the user sentiment for Norsk Guardian? User sentiment appears to be very positive, with the app holding a high rating of 4.8 stars from available ratings. This suggests users find it reliable and useful. ## Version history (last 5 releases) ### 2.2.2 — 2026-05-12 - Minor bug fixes ### 2.2.1 — 2026-03-30 - Minor UI improvements ### 2.2.0 — 2026-01-22 - Tech stack upgrade - Minor UI improvements ### 2.1.3 — 2025-10-09 - Made Deep Sleep more visible - Added seasonal offers ### 2.1.2 — 2025-08-11 - Simplified password-based sign-in flow - Per-battery runtime calculation modes - Improved group warnings ## Apps similar to Norsk Guardian | App | Rating | Price | Category | | --- | --- | --- | --- | | [RICH SOLAR](https://appshunter.io/ios/app/rich-solar/id6743063298) | — | Free | Utilities | | [Trojan SmartBattery App](https://appshunter.io/ios/app/trojan-smartbattery-app/id6444421359) | 5.0 (1) | Free | Utilities | | [PureEnergy Battery](https://appshunter.io/ios/app/pureenergy-battery/id6747735846) | — | Free | Utilities | | [Volta Power USA](https://appshunter.io/ios/app/volta-power-usa/id6630366386) | — | Free | Utilities | | [NuPower NBE](https://appshunter.io/ios/app/nupower-nbe/id6717586963) | — | Free | Utilities | | [ANCEL BM300 Pro](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644) | 2.8 (18) | Free | Utilities | ## Related topics [nesa lithium battery](https://appshunter.io/ios/topics/nesa-lithium-battery) · [lithium battery monitor](https://appshunter.io/ios/topics/lithium-battery-monitor) · [allied battery](https://appshunter.io/ios/topics/allied-battery) --- *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 2026-06-07.*