Lithium Battery Upgrade + Simrad Navigation Refit - Port Macquarie

Posted by Shotgun Shelly on 22nd Sep 2026

Lithium is the upgrade every boat owner is asking us about in 2026, and for good reason. A lithium battery bank weighs around half of the equivalent AGM setup, holds a stable voltage right to the end of the discharge, and is rated for thousands of cycles instead of a few hundred. For anyone running electronics, sounders, live sonar or a fridge off the house bank, that's a real difference on the water.

This Port Macquarie refit

A lithium battery bank fitted with proper isolation and fusing
Twin Simrad multifunction displays wired into the new power system
Lowrance ActiveTarget2 live sonar added for forward-facing fishing vision
A clean, camera-ready wiring loom at the helm and in the battery bay

Lithium marine battery bank and wiring installed by Shotgun Marine Services Port Macquarie NSW

The result is a boat that starts easier, runs its electronics harder for longer, and gives the skipper a clearer picture on the water with live forward-facing sonar.

Simrad navigation display upgrade fitted by Shotgun Marine Services Port Macquarie NSW

Thinking about a lithium upgrade or new electronics?

Shotgun Marine Services is an authorised dealer for Simrad, Garmin, Furuno, Raymarine, B&G and Fusion. Get in touch for a quote.