Marine Batteries

Dependable marine starting, cycling and dual-purpose battery options for boats and onboard equipment.

Marine Batteries

Marine batteries are designed to handle the vibration, movement and power demands of boating. Depending on the application, they can provide reliable starting power for boat engines, or supply energy for onboard accessories such as lighting, fish finders and other electrical equipment.

Battery Mart supplies selected marine batteries from ACDelco, SuperCharge and Amaron, with lead-acid and AGM options available depending on the model. Lead-acid batteries offer a practical option for many boating needs, while AGM batteries are sealed, maintenance-free and designed to provide improved resistance to vibration. Choose a battery suited to your boat, electrical requirements and intended use.

Best Uses For

Marine batteries suit boats and onboard systems that need dependable starting, accessory or dual-purpose power.

Outboard & Inboard Starting

High cranking output for compatible petrol and diesel marine engines.

Electronics & Navigation

Power for compatible fish finders, navigation equipment and communications devices.

Lighting & Accessories

Support for onboard lighting, pumps and other compatible 12V accessories.

Recreational Boats

Marine battery options for fishing boats, runabouts and other recreational vessels.

Dual-Purpose Applications

Selected batteries combine starting performance with limited cycling capability.

Marine Auxiliary Systems

Selected deep-cycle options for accessory or house-bank use when correctly sized and charged.

Key Benefits

Marine Starting Power

Strong cranking performance for compatible marine engines.

Vibration Resistance

Marine-focused construction helps withstand movement and vibration.

Dual Marine Terminals

Selected models use SAE posts and stainless-steel stud terminals.

Maintenance-Free Options

Selected sealed models do not require routine water top-ups.

Starting & Dual-Purpose Choices

Choose according to whether the priority is starting, cycling or both.

Local Product Matching

We can help check capacity, dimensions, terminal position and application requirements.

Starting, Deep Cycle or Dual Purpose

A starting battery delivers a short burst of high current for engine cranking. A deep cycle battery provides power over a longer period and handles repeated cycling. A dual-purpose battery balances both requirements. Always check voltage, required cranking performance, dimensions, terminal configuration and manufacturer recommendations.

Featured Marine Batteries

ACDelco: HCM27SMF; HCM24SMF; M27SMF780 – 12V, 100Ah, 185-minute reserve capacity and 780 CCA; M31SMF1000 – 12V, 100Ah, 180-minute reserve capacity and 1000 CCA.

SuperCharge: MRV50 – 650 CCA, 140-minute reserve capacity and 80Ah; MRV70 – 780 CCA, 190-minute reserve capacity and 105Ah.

Amaron: M27R-100 and M31-105. Confirm current Australian specifications, availability and warranty.

Featured Marine Batteries

Supercharge Batteries logo

SuperCharge Marine Batteries

SuperCharge AllRounder

Suitable for applications requiring starting power together with some cycling capability for compatible onboard accessories.

Featured models

  • MRV50 — 12V, 80Ah, 650 CCA and 140-minute reserve capacity
  • MRV70 — 12V, 105Ah, 760 CCA and 160-minute reserve capacity

SuperCharge SeaMaster

Designed specifically for marine starting applications, with maintenance-free options, strong cranking performance and marine terminal configurations.

Featured models

  • MFM48
  • MFM50
  • MFM70
  • MFM87
  • M50
  • M70

Key features

  • Starting and semi-deep-cycle capability
  • Suitable for marine and leisure applications
  • Maintenance-free construction
  • Dual marine terminal configuration
  • Vibration-resistant design
Amaron logo

Amaron Marine Batteries

Amaron marine batteries provide dependable starting and auxiliary power for recreational boats and other compatible marine applications. Their robust construction is designed to handle vibration, repeated use and demanding operating conditions on the water.

Featured models

  • M27R-100
  • M31-105
  • M24R-70

Key features

  • Strong marine starting performance
  • Suitable for compatible onboard electrical loads
  • Durable, vibration-resistant construction
  • Maintenance-free convenience
  • Available in different capacities and case sizes

Need a Marine Battery?

Bring us the existing battery details or tell us the boat, engine and onboard equipment requirements. We will help match the correct starting, deep-cycle or dual-purpose battery.

Battery questions, answered simply

You don’t need to work it out yourself – that’s our job. Use the Find My Battery search above, or give us your registration or vehicle details, and we’ll match the right battery to your vehicle.

Yes. When you purchase a battery from us, we’ll fit it free of charge while you wait. We can also check your charging system and dispose of your old battery responsibly.

Yes. We offer jump-start assistance and on-site battery installation when you can’t get to us. Contact the team to confirm availability and arrange a visit.

Absolutely. We supply batteries for marine, mining, commercial and mobility applications, as well as cars, trucks, motorcycles, caravans, solar systems and other equipment.

Warranty coverage varies by battery brand and model. Our team will explain the applicable warranty when you purchase, and we provide practical warranty support if you experience a problem.