Operation of inflatable watercraft with an electric motor requires a special approach to the placement of the power source. Battery attachment In a boat, PVC is not just a matter of convenience, it's a critical safety feature on the water, and improper fixation can lead to a heavy box rolling over, terminals breaking, and, as a result, loss of control at the most inopportune moment.
Unlike metal or fiberglass boats, where the battery can be tightly attached to the bottom, inflatable models, a hard bottom (HDD) or soft bottom (AirDeck) require specific solutions. You need to find a balance between the rigidity of the fixation and the safety of cylinders from friction and puncture. Lead-acid and lithium batteries They have different weights, but both categories need reliable protection from moisture and impact.
In this article, we will look at all aspects of installation, from choosing the right box to belt mounting schemes or on the smackboard. You will learn what mistakes beginners make and how to turn a chaotic cargo on the floor into a well-integrated part of the power system of your vessel. Safety and comfort of fishing depends on how well this work is done.
Choosing the Right Hermobox for the Battery
The first step to secure fixation is to buy the right container. A regular plastic box from a hardware store is a temporary solution that can fail. battery-holding It starts with a sealed box, which will protect the electrolyte from leaking out in the event of a boat flip, and the battery itself from splashes and direct water ingress.
Modern boxes have special holes for wires and ventilation, which prevents the accumulation of gases during charging. It is important to pay attention to the material of the case: it must be resistant to ultraviolet light and low temperatures. Polypropylene It is considered the best choice due to its strength and chemical inertness.
When you choose a size, consider not only the dimensions of the battery itself, but also the thickness of the box walls. If you fit too loose, the battery will dangle inside the box, creating impact loads. equipped with built-in handles for carrying and belt lockersThis greatly simplifies installation in a limited cockpit space.
- 🔋 The tightness of the IP65 and higher class protects against full immersion for a short time.
- 🛡️ The impact-resistant plastic prevents the battery from breaking down when hitting solid objects.
- 🔌 The presence of built-in terminals or terminals allows you to connect the load without opening the lid.
When buying a box, check the compatibility of the diameter of the wire holes with the thickness of your power cables – sometimes they have to be drilled or used adapters.
The main ways of fixing in an inflatable boat
There are several proven methods to securely lock the battery box, and the specific method depends on the design of your boat: whether you have a hard floorboard, the type of inflatable floor, or the installation of additional equipment, and the main rule is to avoid shifting the center of gravity and rolling cargo while driving.
The most common option is to use standard liner mounts, and many boat manufacturers provide special rings or semi-rings on cylinders to which you can fasten your belts, but if you don't have them, you'll have to be smart and use existing design elements, such as can mounts or squirt boards.
For boats with NDMA The best solution is to install the battery under the seat or in a special lockbox if the design allows. It is important that the belts do not rub the fabric of the cylinder when rolling. The use of soft linings of neoprene or foamed polyethylene between the box and the bottom of the boat significantly reduces the risk of damage to the PVC material.
Installation on the transom board: pros and cons
Putting the battery on a trayboard is a popular but controversial solution, and on the one hand, it frees up space in the cockpit and shifts the center of gravity closer to the stern, which can be useful for glides. transmutation increases the load on the soft board, which can bend under the weight of the battery, especially on the wave.
To implement this method, the tray board must be reinforced. Normal plywood without additional upholstery or reinforcement may not withstand a weight of 15-20 kg plus dynamic loads. It is recommended to use boards of moisture-resistant plywood at least 12-15 mm thick, coated with a protective layer. lamination or enamel.
The locking of the box on the board is done with through bolts or powerful clamps. It is important to provide limiters that will not allow the box to slide down when rolling. It is also worth considering that when this arrangement of the wires to the motor become shorter, which reduces voltage loss, but requires very careful stacking, so as not to damage them when installing the motor.
⚠️ Warning: Never attach the battery directly to an inflatable transom without a rigid base. The pressure of the gas and the flexibility of the material will cause the mounts to break off quickly and the battery to fall into water.
Use of slings and belts for reliable retention
The most versatile way of fixing is still carbine or fastex buckle belts, which allow you to create a reliable bandage around the box by attaching it to the elements of the boat. Slings must be made of a water-resistant material resistant to ultraviolet light, for example, from polypropylene.
When tightening belts, it is important to observe measure. Excessive force can deform the plastic box body or, worse, squeeze the boat cylinder, creating a point of tension in the fabric. Inadequate tightening will lead to backlashes. The ideal state is when the box does not move when rocked hard, but the belts are not pressed into the soft elements of the structure.
To improve reliability, use a cross-mounting circuit: one belt holds the box along the long side, the second one across. The mounting points to the boat should be spaced as wide as possible to create a stable base. Metal carbines are better chosen without sharp edges, so as not to damage the fabric in casual contact.
☑️ Checking of the attachment reliability
Comparison of anchorage types and their specifications
To determine the best option for your boat, it is worth comparing the main specifications of different methods. Each approach has its advantages and disadvantages, which become noticeable in real-world conditions.
| Type of attachment | Reliability | Difficulty of installation | Impact on balance |
|---|---|---|---|
| On the floor (staff rings) | High. | Low. | Low center of gravity |
| On the transom board | Medium | Medium | Stern displacement |
| In the joong/under the seat | High. | High. | Depends on the location. |
| Separate platform | Very high. | High. | Weight gain |
As you can see from the table, floor mounting with regular elements is often the most balanced solution, it provides a low center of gravity, which increases the stability of the boat. However, if the floor is soft, the battery can interfere with the legs, requiring additional elevation or niche.
The Secret of a Sustainable Platform
If you're making a battery platform yourself, use a two-sheet plywood sandwich design with a layer of foam, which will give you buoyancy if you fall into the water and reduce your overall weight.
Contact and electrical protection
Right. battery-holding The electrical part is not organized properly, the cables must be laid so as to prevent rubbing on the side of the boat, sharp edges of the box or moving parts of the engine, the use of corrugated tubes and cable channels is a mandatory requirement for long-term operation.
Pay special attention to the exit points of the wires from the box. The holes should be sealed with rubber bushings or sealant to prevent moisture from entering the drawer. The oxidation of contacts is the main reason for the failure of the electric motor at the most inopportune moment. Regular lubrication of the terminals with special compounds will prolong the life of your electrician.
Don't forget the fuses. They should be installed as close as possible to the battery, on the plus wire. In the case of a short circuit, it is the fuse that will save the boat from fire or complete discharge of the battery. safety-guard in waterproof enclosures.
⚠️ Warning: The wires should not be pulled like a string, leave a small loop (weakness) at the entrance to the box, so that when the boat vibrates or shifts, the terminals do not break out of the battery.
Frequently Asked Questions (FAQ)
Can you put the battery directly on the bottom without boxing?
Even if you wrap the battery in a fabric, the absence of a rigid sealed case will cause rapid damage to the cylinders of the boat by the angles of the battery. In addition, in case of damage to the battery, the electrolyte will flow directly to the bottom of the boat, which can be dangerous to the health and fabric of PVC.
Which belt is better to use: nylon or polyester?
Polyester belts are better suited for sea and river conditions. Nylon has the ability to absorb moisture (up to 10-15% of its weight) and stretch when wet, which can weaken the fixation of the cargo. Polyester practically does not absorb water and retains its geometric dimensions.
Do I need to remove the battery from the boat after every fishing trip?
Aside from the risk of theft, the battery (especially lead acid) does not like deep discharge and cold storage. A battery left on a boat can run out of power due to self-discharge or forgotten consumers, leading to plate sulfation and failure.
How to protect the terminals from salt water?
Use special protective sprays for terminals (for example, silicone or wax-based), they create a water-repellent film, and plastic protective caps, which are often bundled with boxes or bought separately, are also effective.
The main principle of safety - the battery should be fixed so that in case of a complete overturn of the boat it remained in its place and did not sink with the boat if the box is leaky.
Proper organization of the place for the battery is the foundation of safe operation of your PVC boat. Do not skimp on quality boxing and reliable belts, because it depends not only on the service life of expensive equipment, but also your safety on the water. Properly fastened cargo does not distract from fishing and gives confidence in every movement.