Hydro Charger Light

Specifically recommended for the coast

Technical Data


Our new Hydro Charger Light has been especially designed for coastal sailing and short distance journeys. With this easy-to-use Hydro Charger, uses the power of water to generate electricity while sailing.


✔ Easy to handle

✔ Maintenance-free

✔ Low weight

✔ Always vertical in the water

✔ Available in 2 versions 12 / 24 Volt

Pivotable transom bracket (Inclusive)

With the swivel bracket, the Hydro Charger always remains vertical in the water, allowing it to achieve optimal performance.

The self-locking nut allows for easy adjustment of the swivel resistance, enabling slower or faster lowering.


Sealed on both sides with 2 O-rings each

Multiple-bearing propeller shaft

Generator part: Gear motor with shaft, propeller, 4 m 3-pole cable, and plug.

Power range: Charging from 4 knots (depending on the type of ship and the basic setting of the propeller pitch)

Electrical power: Depending on speed, from 50 to 500 watts (depending on battery status)

Generator dimensions: Gear motor with shaft and pivotable transom bracket: 110 x 10 x 30 cm, Propeller diameter: 360 mm, Weight: 12 kg


Power: 1,000W (max. hydrogenerator 600W, solar panels 400W, max. 60 vdc)

Possible batteries: 12/24 V, from 200Ah / 100Ah (automatic voltage detection)

Max. battery voltage for charging stop: 16V/32V (adjustable)

Min. battery voltage for load disconnection: 11V/22V

Max. charging current: 40A (20A at 24V)

Charging loss: less than or equal to 45mA

Dimensions: 278 x 133 x 75 mm

Weight: 1.6 kg

Operating environment Temperature: -10° to 50° Celsius, relative humidity 0 to 90%

(Do not install in the locker, only in the interior!)


  • Smooth operation due to a special planetary gear
  • Low generator speeds due to a small translation
  • Optimized efficiency through special translation
  • No vibrations on the propeller due to a built-in clutch, making it nearly silent in the water
  • Hard-anodized aluminium housing and cover made of special plastic
  • Streamlined anodized aluminium profile
  • All screws made of stainless steel (A4)


  • Main body manufactured in a solid synthetic material
  • Stove enamelled aluminium propeller blades.
  • Blade angle is infinitely adjustable depending on type of the boat (speed)
  • Propeller blades are replaceable (i.e. after collision)
  • Blades were designed using CFD software (Computational Fluid Dynamics) to optimize the blade form and twist for superior performance


  • Alarm function when the battery is fully charged
  • Built-in switch for freewheeling (propeller rotates freely when the maximum set battery voltage is reached)
  • Additional connection for direct consumers that automatically turn on and off with sufficient battery voltage
  • Digital display
Courbes de puissance

User manual Hydro & Solar Hybrid charge controller



Installation manual Hydro Charger Light





Support for bathing platforms

With the robust stainless steel angle bracket, you can easily mount the Hydro Charger to almost any bathing platform.

Material: Stainless Steel

Size: 265 x 70 x 260 mm

Weight: 4,4 kg

For the use with lithium-ion battery it is absolutely obliged, the installation of a breaker in the yellow AC cable, between generator and controller, which is commanded from the BMS (Battery Management System) of the battery. This installation has to be approved from the battery producer. Swi-Tec overtakes no responsibility for this installation.

Set of Propeller Blades

In case a propeller blade is damaged due to a possible collision, you can easily replace it with our spare part set.

The set consists of 3 aluminum propeller blades that have been powder-coated. The blades can be used for all our Hydro Charger models.

Replacement Propeller Complete

The complete replacement propeller consists of the main body made from special plastic and the aluminum propeller blades which have been powder-coated.

The pitch is fixed and adjustable depending on the type of ship (speed).

Electronic Controller

If you have a problem with the electronic controller of the water generator, you can easily replace it.

It can optimally compensate for voltage losses by adjusting up to 16/32 volts.

Generator Part without Propeller and Mechanics

To avoid repairs at the factory with high transportation costs and great effort, we now also offer the generator as a spare part, where you can choose between 2 models and 12V or 24V.

Pylon without Bracket and Propeller

To avoid repairs at the factory with high transportation costs and great effort, we now also offer the generator as a spare part, where you can choose between 2 models and 12V or 24V.

SWI-TEC, Neveta Nautica SL

For over 20 years our philosophy has remained unchanged: We develop special products for everyday use on board to make life a little easier for you. We use high quality materials for production so as to offer you yacht accessories with extreme durability and high quality. Our product are there to make you enthusiastic every time you use them.