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East Tamaki
Auckland
New Zealand

 

hello@zerojet.nz

FAQ

Why would I want an electric jet tender?

Aside from the fact that electric engines are so much better than combustion engines for the ocean, our expertly-engineered jet systems are specifically designed and tuned for an electric motor, which means unbeatable performance. They’re compact and lightweight too, which means you have more space inside the boat, no prop, and easy manoeuvring across shallow reef ecosystems and when you make it to shore.

What makes the ZeroJet system different to other jet tenders?

If you’re into boating, you’ve probably noticed that jet tenders are usually powered by large and heavy combustion engines which do not fit well into tenders smaller than 4m. Until now! The ZeroJet electric jet system is compact and lightweight, making it suitable for tenders as small as 3m. Plus there’s no pollution, and no noise. Just you, the ocean, and a rechargeable battery.

Will the tender get up on the plane with a ZeroJet system?

The ZeroJet system is up to 30 HP equivalent, but you will plane a lot quicker than a combustion outboard equivalent because the electric motor delivers a huge amount of torque at a low RPM whereas a gas outboard requires nearly full throttle to reach its maximum torque. In other words - yes indeed! The ZeroJet Offshore Cruising Tenders package can plane in as little as 8 knots. We’re pretty proud of that.

How much power does the ZeroJet system provide?

Here’s the technical lowdown: 14kW of output power. High efficiency at low speeds. 50% more propulsion than a conventional outboard motor of the same power level. In other words, it’s more than you’d expect for such a compact wee thing. In fact, we’re pretty sure ZeroJet will exceed your expectations.

Can I use different batteries with your ZeroJet system?

Our system can only be used with specific batteries - but this is for good reason. All the system components are designed to work together and communicate effectively and safely. Using alternative batteries may compromise safety, controls, charge balancing and system information, and we can’t have you losing power while on the water!

Which batteries do you use?

ZeroJet is proud to be at the cutting edge of electric jet system engineering. And that’s why we use the safest battery chemistry on the market, which is available worldwide. We’re talking about Lithium iron phosphate (LiFePO4). LiFePO4 batteries offer far greater cycle life and discharge power, and are a much safer alternative to lithium-ion cells. And while we’re on safety: manufacturers across industries turn to LiFePO4 for applications where safety is a factor. You’ll agree with us when we say safety is a huge factor when considering your tender is your life raft and also stored in your home (boat). The alternative lithium-ion cells (as found in automotive EVs) have been known to catch fire and we believe are less suitable for tenders.

What range can I expect in a ZeroJet powered OC tender?

There are a few variables that affect the range of a ZeroJet-powered OC tender - namely wind, chop, number of people on board and speed. In general, you can expect 7 hours run time at 3 knots, or 1 hour run time at 12 knots with the small battery pack. This increases to 10 hours at 3 knots or 1.5 hours at 12 knots with the large battery pack.

How fast do the batteries charge?

The small packs will charge in 2-3 hours and the larger packs in 4-5 hours. Or from 20% to 80% in roughly half that time.

What is the process for charging?

The charger mounts in your mothership, with one cable running from the charger to your tender. Easy, tidy, efficient.

How do you install the ZeroJet system?

Currently we only offer the ZeroJet system as a complete tender package, or as a standalone system to boat builders. Installation must be done by us or an approved boat builder, but we’d love to chat about a specific project if you have one in mind.