Norsk Lithium 14.8V 50Ah Lithium-Ion Battery with Charger

The Norsk Lithium 14.8V 50Ah battery is the highest-capacity portable sonar battery in the Norsk lineup, purpose-built for Garmin LiveScope, Lowrance ActiveTarget, and Humminbird Mega Live Imaging. With 740 watt-hours of capacity, it gives you full-day or multi-day runtime without needing shore power. Dual IPX8-rated waterproof USB-A and USB-C ports let you charge devices in wet conditions, and Bluetooth monitoring through the Norsk Guardian app gives you real-time visibility into voltage, temperature, and current draw. Includes a charger.

Warranty: 4 years standard, extendable to 6 years with Norsk Guardian app registration.

What It Does on the Water

Live sonar systems draw consistent power demands that standard marine batteries are not optimized for. The 14.8V 50Ah lithium-ion NMC chemistry delivers stable voltage output throughout the discharge cycle, keeping your sonar performing at full capacity from the first cast to the last. At approximately 6.9 lbs, it is the largest of the Norsk 14.8V sonar batteries and is built for anglers who run multiple units or fish long days without access to a charger.

The LED state-of-charge indicator gives you a quick read on remaining power. Deep Sleep mode disconnects power from the terminals via the Norsk Guardian app or the one-touch Power Management button to eliminate phantom draw during storage. BMS protection covers overcharge, over-discharge, overcurrent, short circuit, and high and low temp shutoff. Rated for 2,000+ charge cycles.

Professional Installation at Ben's Marine

At 50Ah, this battery can sustain multiple sonar units or run all day without a recharge. Getting the wiring and connectors sized correctly for that level of sustained current draw matters. Our technicians handle the full install so your battery is wired correctly, your connections are clean, and your sonar is ready to fish from day one.

Ben's Marine can handle:

• Battery mounting and securing
• Wiring and connector installation sized for sustained current draw
• Integration with onboard electrical systems
• Cable management and cleanup

Ready to order or have questions? Call or text us at (218) 820-9781. We're located in the Brainerd Lakes area and ship nationwide.