14.8V 50Ah Lithium-Ion Battery with Charger
The Norsk Lithium 14.8V 50Ah Lithium-Ion Battery is the most powerful portable sonar battery in its class—purpose-built to deliver extended, uninterrupted runtime for high-demand forward-facing sonar systems. Designed for anglers who rely on advanced imaging technologies like Humminbird MEGA Live Imaging™, Garmin Livescope™, and Lowrance ActiveTarget™, this battery ensures your electronics stay powered longer, so you can focus on fishing, not power management.
With 740 watt-hours of energy storage, this battery offers unmatched capacity in a compact form factor—ideal for full-day use or multi-day trips without access to shore power. Whether you’re chasing fish across large bodies of water or using multiple graphs and sonar units simultaneously, the 50Ah battery delivers consistent, high-output performance without voltage dropouts or system lag.
Built for real-world conditions, the battery features dual IPX8-rated waterproof USB-A and USB-C ports, allowing you to charge phones, cameras, and other accessories directly from the battery—even in wet, harsh environments. The upgraded charge status display gives you a clear, real-time view of your remaining capacity, making it easier to manage power levels throughout the day.
To further extend shelf life and reliability, the battery includes Deep Sleep™ Mode—an advanced low-power setting that electronically disconnects the terminals to eliminate parasitic drain during storage. This ensures your battery retains its charge for months at a time, ready to perform when you need it most.
Integrated Bluetooth connectivity lets you pair the battery with the Norsk Guardian® App, providing remote access to vital stats like voltage, current draw, and temperature—all from your smartphone. Whether you’re monitoring usage trends or checking charge levels between casts, the app gives you complete control and peace of mind.
Key Highlights:
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Massive 50Ah (740Wh) capacity supports full-day+ sonar operation
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Optimized 14.8V output for forward-facing sonar system performance
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Waterproof USB-A & USB-C ports for charging devices in all conditions
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Deep Sleep™ Mode for zero self-discharge during storage
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Bluetooth-enabled monitoring via Norsk Guardian® App
Whether you’re a tournament angler or a weekend explorer, this battery gives you the endurance, visibility, and control to stay powered and stay productive on the water.
Cory Violette –
I bought this battery to power 2 12 inch Garmin Screens on my boat. One screen runs Live scope and the other does the more typical sonar and GPS work. I incorrectly connected the battery at one point and shorted it. I sent a note of to Norsk for help on what to do next. They responded quickly and I could tell the cared about getting me back up and running. We all know there’s only so many fishing days on the calendar!! Couldn’t be happier with the battery and the customer service.
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Tyler –
Fits in my HD innovations shuttle and has no problems running my 12” screen and ffs, but no sticker included with the battery 🙁
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