The lowdown on Lithium Battery Systems.

So many good reasons to switch.

Batteries have always provided valuable electrical storage on boats. But in recent years, we’ve seen a big improvement in battery technology, particularly with lithium-based systems that offer far superior performance to traditional batteries.

Boat owners need to pay attention to what they install! 

Yes, lithium battery systems are a great way to go, but first, they need to be high-quality lithium products. And second, they need to be installed correctly – i.e. you can’t just swap it over and expect it to work properly.

(Always talk to a marine electrical specialist first).

NZ Marine Standard Lithium Brands – Victron, Mastervolt, Juice.

The only brands that comply with NZ Marine Standards are Victron, Mastervolt and Juice - HMB Marine Electrical can supply all three. Other ‘box brands’ are not suitable for boats, only the RV market.

Is the outlay for lithium worth the investment?

Lithium battery systems do require an initial outlay, however, the upfront investment is worth it. Particularly for owners of offshore cruising boats who spend many days on the water at once. Lithium provides more capacity - but it also means owners will spend less time charging and more time boating!

  • Lithium lasts 10 – 12 years, compared to 5 years for standard batteries.

  • Huge savings on space and weight - run more batteries and get almost double battery capacity for the same space (area) and weight.

  • Charging is quicker - shorter time to run engines or generators for charging - using less fuel to charge and less generator noise. 

Warning! Incorrect installation won’t pass EWOF.

When you install lithium batteries you need to upgrade the complete energy setup, i.e wiring. And it all needs to comply with NZ Marine Electrical Standards to get your EWOF -this is really important for safety and insurance.


So, if you are considering upgrading to a Lithium Battery System, please talk to us first for good advice.

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