Why Do So Many People Eventually Upgrade to Dual Underwater Thrusters?
Posted by Fengyukun on
When most people first get into underwater thrusters, they usually start with:
“Let’s try a single thruster first.”
And honestly, that makes perfect sense.
Single-thruster setups are:
- more affordable
- lighter
- easier to install
- less demanding on batteries
For SUP boards, kayaks, and lightweight inflatable boats, a single thruster already makes paddling much easier.
But after using the system for a few months, many users eventually switch to:
a dual-thruster setup.
Why?
It’s not because single thrusters are bad.
It’s because as people spend more time on the water, they start noticing that dual thrusters improve:
- stability
- steering
- load capacity
- overall comfort
far more than expected.
1. The Biggest Difference: Better Stability
One of the first things users notice after switching to dual thrusters is:
“The boat feels much more stable.”
This is especially noticeable on:
- inflatable boats
- wide SUP boards
- heavily loaded kayaks
Why Does It Feel More Stable?
With a single thruster, all propulsion comes from one point at the rear of the boat.
A dual-thruster setup distributes power across both sides.
That creates:
- smoother acceleration
- more balanced movement
- improved directional stability
The difference becomes even more noticeable in:
- waves
- crosswinds
- changing currents
2. Steering Becomes Much Easier
Many first-time users notice that low-speed steering with a single thruster isn’t always as smooth as expected.
Especially when:
- the boat is heavily loaded
- wind increases
- waves become stronger
control can start feeling sluggish.
This is where dual thrusters really shine.
Because the left and right thrusters can produce different levels of thrust, the boat can turn more naturally through differential steering.
This is why many:
- electric boats
- workboats
- high-end electric SUP systems
use dual-thruster configurations.
3. The Difference Is Even Bigger in Ocean Conditions
On calm lakes, a single thruster is often enough.
But ocean conditions are completely different.
At sea, users deal with:
- stronger resistance
- currents
- wind
- waves
That’s when many people start noticing issues like:
- insufficient thrust
- difficulty moving against wind
- poor steering control
- lower speed under heavy load
Especially during offshore fishing trips with gear onboard.
After spending some time in saltwater environments, many users eventually upgrade to dual thrusters.
Not just for speed.
But because the entire experience feels:
much easier and more comfortable.
4. Dual Thrusters Handle Heavy Loads Better
Many people initially use their setup for simple solo cruising.
But over time, they start bringing:
- fishing equipment
- camping gear
- extra passengers
- larger batteries
As weight increases, a single thruster can start struggling.
One of the biggest advantages of dual thrusters is significantly improved load capacity.
Especially for:
- inflatable boats
- large kayaks
- fishing platforms
the difference becomes very noticeable.
5. Dual Thrusters Are Better for Long-Distance Cruising
A lot of people assume dual thrusters always consume more power.
That’s not entirely true.
When a single thruster runs under heavy load for long periods, efficiency often drops.
Dual thrusters can share the workload more efficiently.
In many real-world situations, a lower-power dual-thruster setup actually feels smoother and more efficient than pushing one thruster to its limit.
Especially during long-distance cruising.
6. Why Are More People Switching to Dual Thrusters?
The reason is simple:
user expectations are changing.
In the past, many people simply wanted:
“something to make paddling easier.”
Now users care more about:
- stability
- comfort
- quiet operation
- longer range
- smoother steering
And dual-thruster systems improve all of those things.
7. What Dual-Thruster Systems Does APISQUEEN Offer?
Today, APISQUEEN offers a wide range of dual underwater thruster systems for different applications, including:
- SUP boards
- kayaks
- inflatable boats
- fishing setups
- cruising
- ROV projects
- high-power marine applications
There are options for both beginners and professional users.
Lightweight Recreational & ROV Systems
U01 Dual Thruster Set

Suitable for:
- small ROVs
- DIY projects
- lightweight systems
Features:
- 12V–16V
-
The total thrust of the set is 3.4 kg.
- bidirectional ESC support
This is a compact entry-level solution for lightweight applications.
U2 Dual Thruster Set

Suitable for:
- small kayaks
- recreational boating
- DIY electric boats
Features:
- 12V–16V
- 300W power
- The U2 kit has a total thrust of 3.4 kg.
The difference compared to the U01 is that the U01 is suitable for use only in freshwater environments, whereas the U2 features enhanced corrosion resistance and is suitable for use in both freshwater and saltwater.
Mid-Range Recreational / Fishing / SUP Systems
U92 Pro Dual Thruster Kit

This is currently one of APISQUEEN’s most popular systems.
Suitable for:
- SUP boards
- kayaks
- inflatable boats
- lake cruising
- fishing
Features:
- 24V system
- approximately 20kg total thrust
- built-in ESC
- sand and silt resistant design
- wireless remote control
- relatively simple installation
This setup is especially suitable for users who want an easy electric conversion solution.
U5 Dual Thruster Kit

Suitable for:
- inflatable boats
- recreational cruising
- fishing
Features:
- compatible with 12V and 24V
- The total thrust is approximately 14 kg.
- lightweight recreational design
A classic entry-level recreational device. Please note that the U5 kit is suitable for freshwater environments only.
MU7 Dual Thruster Kit

Suitable for:
- SUP boards
- kayaks
- daily cruising
Features:
- 24V system
- approximately 10kg total thrust
- wireless remote control support
Designed mainly for lightweight recreational use.
High-Power & Ocean-Use Systems
U35 Dual Thruster Kit

Suitable for:
- cruising boats
- fishing boats
- medium to large vessels
Features:
- 24V / 48V system
- aluminum alloy structure
- approximately 78kg total thrust
Clearly designed for marine environments and heavier loads.
AQ1121 Dual Thruster Kit

This is one of APISQUEEN’s most advanced dual-thruster systems.
Suitable for:
- ocean environments
- heavy loads
- long-distance cruising
- professional marine projects
Features:
- 48V–60V system
- approximately 42kg total thrust
- all-metal construction
- built-in FOC ESC
- high efficiency and low noise
- stable long-duration operation
This system is ideal for users who need serious marine performance.
U10 Dual Thruster Kit

Suitable for:
- offshore fishing
- workboats
- heavy-duty applications
Features:
- 24V system
- approximately 20kg total thrust
- metal housing
- corrosion-resistant design
A durable marine-focused propulsion solution.
8. Who Should Consider Dual Thrusters?
If your use case is mainly:
Casual cruising
on calm lakes,
a single thruster is often enough.
But dual thrusters become much more worthwhile if you:
- frequently use your boat in the ocean
- enjoy fishing
- carry heavy loads
- cruise long distances
- use inflatable boats
- want smoother steering and better control
9. Are Dual Thrusters More Expensive?
Yes, naturally.
A dual-thruster setup usually means:
- another thruster
- larger batteries
- higher power demands
But many users discover that the improvement in handling and comfort is much bigger than expected.
Especially when it comes to:
- stability
- steering feel
- overall riding experience
These are things that don’t always show up on a spec sheet.
10. Is a Single Thruster Still Worth Buying?
Absolutely.
For many beginners, a single-thruster setup is still the best starting point.
Because it is:
- lighter
- simpler
- more affordable
- easier to install
For many SUP and kayak users, a single thruster is already more than enough for everyday use.
Final Thoughts
Most people don’t upgrade to dual thrusters because a single thruster is “bad.”
They upgrade because over time, users begin valuing:
- stability
- smoother control
- long-distance comfort
- better ocean performance
And those are exactly the areas where dual-thruster systems make the biggest difference.