Norsk Lithium 50ah Lithium-ion Battery
14.8V 50Ah Lithium-Ion Battery with Charger - Image 2
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Summary

  • Best For: Maximum-runtime live imaging shuttles, large displays, high-demand forward-facing sonar, tournaments, long ice days, and trips with limited charging access.
  • Why It Matters: Maximum portable sonar runtime, 740Wh capacity, clean 14.8V power, 7A rapid-charge capability, Bluetooth monitoring, Deep Sleep™ storage protection, and a 4+2 Year Warranty.
  • Compared to Cheap Lithium: Purpose-built 14.8V live-imaging power, maximum-capacity shuttle-friendly design, IP67 waterproof construction, internal cell racking, advanced BMS protection, and IPX8 USB-A/USB-C ports.

14.8V 50Ah Lithium-Ion Battery with Charger

(7 customer reviews)

$389.99   SOLD OUTOUT OF STOCK

Now equipped with Guardian – The 14.8V 50Ah Lithium-Ion Battery is the ultimate power solution for live imaging and forward-facing sonar systems. As the largest portable sonar battery in the lineup, it provides unmatched capacity, making it the perfect choice for extended use with devices like Humminbird MEGA Live Imaging™, Garmin Livescope™, and Lowrance ActiveTarget™. Comes with standard 3A Charger.

Included Features & Technology

WARRANTY 10+2 YEAR Warranty4+2 YearsNon Pro-RatedReceive an additional 2 Years when you register through the Norsk Guardian™ App for a total of 6 Years of protection.

Out of stock

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2000+ Cycles
EST. 5-10 Years
$0.19 Per Cycle
SKU: 850042818480

WARNING: This product can expose you to chemicals including Nickel which is known to the state of California to cause Cancer. For more information go to www.P65warnings.ca.gov

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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:

  • Massive 50Ah (740Wh) capacity supports full-day+ sonar operation

  • Optimized 14.8V output for forward-facing sonar system performance

  • Waterproof USB-A & USB-C ports for charging devices in all conditions

  • Deep Sleep™ Mode for zero self-discharge during storage

  • 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.

DEEP SLEEP™ Deep Sleep Logo

Disconnect power from your battery’s terminals using this feature in the Norsk Guardian® app to eliminate fully-discharged batteries caused by phantom draw – storing your battery has never been easier!

ONE-TOUCH POWER MANAGEMENT

The Power Management button allows the user to quickly check State of Charge, and manage advanced features such as Deep Sleep™ or BMS reset.

IP67 WATERPROOF

IP67 Waterproof ensures that your Norsk Lithium Battery is fully protected against dust and capable of withstanding immersion in water up to 1 meter deep for 30 minutes. This high level of protection guarantees that your battery remains operational in the harshest environments, providing reliable performance and durability.

NORSK GUARDIAN APP INTEGRATION

Seamlessly manage your battery’s performance with the Norsk Guardian® App. Monitor battery status and control the Deep Sleep™ mode all from the convenience of your smartphone.

THE NORSK ADVANTAGE

Our batteries stem from the dedication of outdoor enthusiasts relentlessly pursuing advanced rechargeable lithium technology to power their passions. Recognizing the urgency of a robust power source, the Norsk 14.8V 50Ah Lithium-Ion Battery is designed to endure over 2,000 charge cycles, backed by an exceptional warranty. Enjoy a standard 4-year warranty, plus an additional 2 years when you sign up for the Norsk Guardian® App, ensuring enduring performance. Whether you’re braving the cold on a fishing trip or embarking on an off-grid adventure, you can trust Norsk Lithium® to deliver reliable power when you need it most.

CORE SPECIFICATIONS

Battery Type Lithium-ion NMC
Product Model B14052
Product Name 14.8V 50Ah NMC Guardian Portable Sonar Battery
Cell Configuration 4S10P
Nominal Capacity 50Ah
Nominal Voltage 14.8V
Weight Approx. 3.3 kg / 7.3 lb
Dimensions Approx. 5.875 x 3.875 x 5.125 in / 149.2 x 98.4 x 130.2 mm

CHARGING & DISCHARGING

Maximum Charge Voltage 16.8V
Standard Charge Current 3A
Maximum Charge Current 7A
Maximum Continuous Discharge Current 20A at 10°C to 55°C
Discharge Cutoff Voltage 10.8V
Operating Voltage Range 12.0V-16.8V

USB OUTPUT

USB Output Voltage 5.1V typical / 4.75V-5.25V operating range
USB-A Max Output Power 7.5W
USB-C Max Output Power 15W
USB-A Output Efficiency 85%
USB-C Output Efficiency 90%
USB Over-Discharge Protection Voltage 10.8V typical

TEMPERATURE RATINGS

Charging Temperature Range 0°C to 45°C
Discharging Temperature Range -20°C to 55°C
Storage Temperature Up to 7 days: -20°C to 55°C
Up to 3 months: -20°C to 45°C
Up to 1 year: -20°C to 25°C
Storage Humidity ≤ 50%

SMART FEATURES & PROTECTION

Battery Indicator LED state-of-charge display: 25%, 50%, 75%, 100%
Power Management Button Quick press: Check state of charge / disable Deep Sleep
Long press, 3 lights: Enable Deep Sleep
Long press, 4 lights: Reset BMS
Plug & Play Output In standby mode, plug in the USB-A or USB-C port to turn on output. Factory default enters standby mode after 30 minutes and turns off output.
BMS Protection
  • Overcharge
  • Over-Discharge
  • Overcurrent
  • Short Circuit
  • High Temp Shutoff
  • Low Temp Shutoff
  • Deep Sleep™
  • Bluetooth Communication
  • USB Overcurrent Protection

CYCLE LIFE & CERTIFICATIONS

Cycle Life 2,000 cycles
Certifications FCC, UN38.3, ISED

Norsk Lithium Portable Sonar Batteries (Gen 3) English Manual – 8.5 X11 – SM2305123 – 20241029

Norsk Lithium Portable Sonar Batteries (Gen 3) French Manual – 8.5 X11 – SM2305123 – 20241029

ADVANCED FEATURES

Norsk Lithium Advanced Features dual usb ports

BUILT-IN DUAL USB PORTS

Norsk Lithium 14.8V portable batteries include dual IPX8-rated waterproof USB-A & USB-C ports.

Norsk Lithium Advanced Features Live Imaging

FORWARD FACING SONAR

The line of 14.8V batteries are perfect for powering power-hungry forward facing sonar systems.

Norsk Lithium Advanced Features bluetooth

FREE MOBILE APP

Connect to the FREE Norsk Guardian® App & monitor critical battery info & access advanced features such as Deep Sleep™.

Norsk Lithium Advanced Features Deep Sleep

EASY BATTERY STORAGE

Deep Sleep™ allows the user to disconnect the power from the battery terminals with the power management button or from the Norsk Guardian® App.

Norsk Lithium Advanced Features Power Management Button

POWER MANAGEMENT

Allows the user to quickly check the state of charge & access advanced features such as Deep Sleep™.

Norsk Lithium Advanced Features Internal Battery Management System

INTERNAL ADVANCED BMS

Provides a variety of safety protections like Short Circuit, Overcharging, and Reverse Polarity.

Norsk Lithium Advanced Features Perfect shuttle power

PERFECT SHUTTLE POWER

Highest capacity batteries available, guaranteed to fit into the most common third-party shuttles from companies like ArcLab, Fin Gear, Summit, HD Innovations, or TKI.

Norsk Lithium Advanced Features IP67 Waterproof

IP67 WATERPROOF

Sealed and ready for action, our IP67-rated batteries are built to handle the toughest conditions, whether you’re in a boat, kayak, or fishing on the ice.

FREE APP DOWNLOAD

NORSK GUARDIAN

The Norsk Lithium Guardian App connects to your Norsk Lithium batteries via Bluetooth, enabling simultaneous monitoring of multiple batteries. Track battery health, charging status, and receive real-time alerts—right on your phone.

Customer Reviews

Real feedback from customers

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4.9
Based on 7 reviews
3 Verified Owners 100% Recommend
“This battery is a beast. With the added USBC and USBA you cant go wrong. I actually dropped this battery in the w…” Phil Lesterman Read full review
7 reviews

Ice bundle

Adam VanBeek Verified Owner Recommended

I’m getting 33 hours of runtime with an Ultra 2 106sv & the LVS34 live scope plus. I’ve been very pleased with the runtime as well charge times

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beast of a battery

Jeremy T Verified Owner

great battery fits perfect in my hd shuttle and runs my 8610xsv all day long and then some ive been out with it for over 12 hrs and think i could all most get anuther 12hr on be for i would need to recharge it. and the sleep mod is a nice feature. only thing is its a little on heavy side and like some said it didnt come with any decals. norsk customer service is top notch

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JR

I ordered this product to run my Lowrance fish finder and live scope I am very happy with the size and charger which came with it. Small enough to put both items in my battery storage area with another big battery and three bank charger. It only took two days to receive the product once I ordered it.

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Best portable battery I have owned

Marcus Jules Verified Owner Recommended

Works with Mega Live 2 and my new 12″ explore – I wired everything to the Norsk 50ah and fished all day and still had juice left. Blown away.

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