The transition to electric traction for inflatable floating craft becomes not just a fashion trend, but a conscious choice of thousands of boaters who appreciate silence and lack of vibration. Electric motor for PVC boat It allows you to sneak up on fish without frightening the fish with the roar of the gasoline unit, ideal for small rivers, closed water bodies and places with strict noise and emissions restrictions.
Unlike traditional combustion engines, electrics do not require complex maintenance, oil change and preparation of the fuel mixture. However, before buying, you need to understand the technical nuances, so as not to buy too weak or, conversely, overly powerful unit. In this article, we will discuss in detail all aspects of the selection, installation and operation of electric motors for inflatable boats.
Advantages and Disadvantages of Electrical Traction
The key to electric motors is their environmental friendliness and their quietness, and the lack of exhaust gas makes them ideal for fishing, where the smoke and smell of gasoline can ruin the entire fishing process. electric motor It is much lighter than the gasoline equivalent, which is critical for transporting an inflatable boat, where every kilogram of weight counts.
But there's a downside to this, and the main limitation is battery life, which is directly dependent on battery capacity, and if a gasoline engine can be refueled in a few minutes and then floated on, then an electric motor requires a power source to recharge. Traction batteries They take up space in the boat and add the total weight, although they distribute it differently than the ICE.
- 🔋 Complete absence of vibrations, which increases comfort on the water and reduces fatigue.
- 🤫 The silent stroke allows you to hear fish splashes and communicate without raising your voice.
- ⛽ No need to store and transport gasoline canisters, which improves safety.
⚠️ Warning: Do not try to use car starter batteries for long-term operation of the engine. They are designed for short-term high-current return and quickly fail at deep discharge.
The cost of owning an electric motor per motor hour is also lower, because electricity is cheaper than fuel, and the engine life is calculated in thousands of hours due to the simplicity of the design. The absence of complex mechanical components, such as a piston group or carburetor, minimizes the risk of failure on the way. Reliability The electric system is one of the key factors that tip the scales in favor of the electric vehicle.
Key technical specifications
When choosing an engine, you first pay attention to the thrust parameter, which is often measured in pounds (lbs). This is the static thrust that the propeller develops. For an inflatable boat up to 3 meters long and with a total weight of up to 500 kg with a crew, a motor with a thrust of 30-40 lbs is usually enough. More powerful models of 50-55 lbs will be required for heavy PVC boats or in the presence of strong current and wind.
Power voltage is the second most important parameter. Most low-power models run from 12 volts, which allows for a single standard battery. More powerful units can require 24 or even 36 volts, which implies a series of two or three batteries, respectively, increasing the weight and dimensions of the power plant.
The length of the lower unit (mine) also plays a role, although for PVC boats, it is often standard. It is important that the screw is immersed in water to a sufficient depth, but does not rest on the bottom in shallow water. Modern models often have telescopic adjustment of the submersion, which is convenient when changing swimming conditions.
| Traction (lbs) | Current consumption (A) | Recommended boat length (m) | Max. cargo weight (kg) |
|---|---|---|---|
| 30 lbs | 20-25 A | 3.0 | 500 |
| 40 lbs | 30-35 AA | 3.0 - 3.6 | 700 |
| 55 lbs | 45-50 A | 3.6 - 4.2 | 900 |
| 80 lbs | 60-70 A | 4.2 | 1200 |
Speed control systems also vary, with turn-based motors (usually 5 forwards and 2 to 3 backwards) and smoother electronic regulators, and fishing is often more important than setting a minimum speed to drift slowly over a point than developing a high speed.
Types of fixing and installation on PVC
Inflatable boats, the most common transom models are those that are attached directly to the hard transom. electric-motor It doesn't require drilling of the body. It's fixed by screw clips that are tightly pressed against the surface of the transom, and it's important that the transom is flat and stiff enough.
If there's no hard transom or it's not comfortable, they use a special suspension bracket, they're put on a balloon, they have a platform for mounting the motor, which is less reliable at high speeds, but it's quite acceptable for quiet movement, and some models have a universal mount that allows you to mount them even on the bow of the boat for better control when trolling.
☑️ Pre-installing check
⚠️ Attention: When mounting the motor on the soft side of the PVC boat, be sure to use protective gaskets so that the sharp edges of the bracket do not damage the cylinder material during pitching.
The installation process takes minutes, first the motor is fixed to the transom, then a battery is connected to it, which must be securely fixed in a special box or at the bottom of the boat, and the power cables must be cross-sectional enough to avoid falling voltage and heating the wires.
Selection of battery
The heart of your electrical system is the battery, and as mentioned, electric motors are powered by Deep Cycles that can deliver long-term energy and withstand deep discharge, and the use of conventional starter batteries will cause them to deteriorate rapidly.
Battery capacity has a direct impact on the driving time. If the motor consumes 20 Amps, then a 100 Amp-hour battery theoretically will provide 5 hours of operation at an average speed. However, in practice, you should put a margin of 20-30%, since full discharge is harmful even for traction batteries.
- 🔋 GELs – do not require maintenance, are safe, but are afraid of overcharging and are more expensive.
- 🔋 AGM - sealed, well-kept current, resistant to vibration, the best choice for the ratio price / quality.
- 🔋 Lithium-iron-phosphate (LiFePO4) – lightweight, long lasting, but require a special BMS and charger.
Battery weight is a significant factor. Lead acid batteries are heavy, which can shift the center of gravity of a boat. Lithium analogs are 2-3 times lighter at the same capacity, but they cost much more. PVC boats.
How to extend the life of the battery?
Never leave the battery in a discharged state for storage. Immediately after fishing, put it on charge. Store the battery in a charged form in a cool room, periodically checking the level of charge once a month.
Rules of operation and maintenance
Electric motors require little maintenance, but following simple rules will prolong their lives. After each foray into the water, especially in salty or muddy water, it is recommended to rinse the mechanism with fresh water, which will prevent corrosion of metal parts and the accumulation of dirt on the screw.
The screw is the most vulnerable element. When you wind grass or fishing line, the motor should immediately be silenced and cleaned. The engine with a locked screw can lead to overheating of the windings or damage to the cut-off veneer (if it is provided by the design). Regularly check the condition of the control cable and terminal connections.
Lubricate the moving parts of the motor lift/rotation mechanism with silicone lubrication once a season to avoid jamming due to oxidation.
It is better to store the motor in a dry place, removing it from the boat. It is not recommended to store the device in a compressed state if the design involves a telescopic shaft, so as not to deform the seals. Periodic visual inspection of the housing for cracks also does not hurt.
Popular brands and models
The market offers a variety of options, from low-end Chinese models to premium European brands, with Minn Kota and Motor Guide leading the segment, which set the standards for quality and reliability, and their products are characterized by accurate thrust calibration and durability of materials.
Brands like Haswing or Flox offer excellent value for money, often copying proven design solutions from market leaders. For newcomers who want to try electric traction without investing heavily, this is a reasonable trade-off. Russian brands are also beginning to occupy a niche, offering adaptation to local conditions.
When selecting a specific model electric motor Pay attention to the availability of the reverse, the number of speed modes and the possibility of installing additional accessories such as sonar or control pedals. Guarantee period It is also an important indicator of the manufacturer’s confidence in the product.
The optimal choice for a standard 2-seater PVC boat is a 30-36 lbs motor with an AGM 100 Ah battery.
Frequently Asked Questions (FAQ)
What is the maximum speed that can be achieved on an electric motor?
Speed depends on the engine's traction, boat shape and loading. Usually, PVC boats have electric motors that can run anywhere from 5 to 10 km/h, which is enough for comfortable movement and trolling, but not for glides.
Can I use an electric motor on the current?
Yes, you can, but you should consider that against a strong current, the rate of fall will be low, and the energy consumption will increase. For rivers with fast current, it is recommended to choose a motor with a thrust reserve (50 lbs and above).
How long does the battery last?
Charging time depends on battery capacity and charger power. A standard 100Ah charge of a 10A battery will take about 10-12 hours. Fast chargers can shorten that time, but they are more expensive.
Is the electric motor afraid of rain?
Most modern engines have protection against splashes and short-term immersion of the propeller, but the control unit and the battery should be protected from direct water.