Norsk Lithium 14.8V 20Ah Lithium-Ion Battery with Charger

The Norsk Lithium 14.8V 20Ah battery is purpose-built for live imaging and forward-facing sonar systems. Designed for Garmin LiveScope, Lowrance ActiveTarget, and Humminbird Mega Live Imaging, it delivers stable, high-capacity power for all-day runtime. This version adds dual IPX8-rated waterproof USB-A and USB-C ports for device charging in wet conditions, an enhanced LED battery meter, Deep Sleep mode, and Bluetooth monitoring via the Norsk Guardian app. Includes a 3A charger.

Warranty: 4 Years, 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 20Ah 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 3.4 lbs and compact dimensions, it fits cleanly into most live sonar setups without adding unnecessary weight to the bow.

Dual IPX8-rated USB-A and USB-C ports let you charge phones, tablets, or other devices directly from the battery even in rain or spray. The LED state-of-charge indicator shows 25%, 50%, 75%, and 100% at a glance. 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. Rated for 2,000 charge cycles.

BMS protection covers overcharge, over-discharge, overcurrent, short circuit, high and low temp shutoff, Bluetooth communication, and USB overcurrent protection.

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.