---
product_id: 13390119
title: "400W Wind Turbine"
brand: "automaxx"
price: "¥237875"
currency: JPY
in_stock: null
reviews_count: 8
url: https://www.desertcart.jp/products/13390119-400w-wind-turbine
store_origin: JP
region: Japan
---

# 400W max power output 6.7 mph low cut-in wind speed Marine-grade water & UV resistance 400W Wind Turbine

**Brand:** automaxx
**Price:** ¥237875
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Catch the breeze, power your future — don’t get left in the dark!

## Quick Answers

- **What is this?** 400W Wind Turbine by automaxx
- **How much does it cost?** ¥237875 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13390119-400w-wind-turbine)

## Best For

- automaxx enthusiasts

## Why This Product

- Trusted automaxx brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Low Wind Activation:** Starts generating power at just 6.7 mph, ensuring energy flow when others stall.
- • **Powerful 400W Output:** Harness robust wind energy to keep your batteries charged even in low winds.
- • **Marine-Grade Durability:** Built to resist saltwater corrosion and UV damage for long-lasting outdoor use.
- • **DIY Friendly & Lightweight:** Easy installation with minimal maintenance—perfect for off-grid pros and eco-conscious managers.
- • **Smart MPPT Charge Controller:** Maximizes battery charging efficiency while protecting against overcharge and overspeed.

## Overview

The Automaxx Windmill 400W 12V Wind Turbine Generator Kit delivers clean, renewable energy with a max output of 400 watts and a low 6.7 mph cut-in speed. Designed with marine-grade materials, it withstands harsh environments while its built-in MPPT charge controller optimizes battery charging and safeguards against overcharging and overspeed. Lightweight and easy to install, this turbine is ideal for off-grid, marine, and residential use, helping reduce your carbon footprint and electricity bills with minimal upkeep.

## Description

desertcart.com: Automaxx Windmill 400W 12V Land and Marine Wind Turbine Generator kit. Inbuilt MPPT Charge Controller + Automatic and Manual Braking System with Amps Meter. DIY Installation. : Patio, Lawn & Garden

Review: Great Follow-up, and Nice Product - I have several Internet repeater sites that are primarily solar powered. During the wintertime short days and stormy weather I've had to take a Honda generator to these remote locations to top off the batteries. Recently I added this wind turbine (see attached pic) and it's solved my power shortage. Typically when it's not sunny it's windy so it's worked out to be a good combination. The unit was not difficult to install, and all appears to be made out of high quality materials, like stainless steel bolts and nuts. A couple of issues. Since on sunny days my solar panel keeps my 360 amp-hours of batteries fully charged, the MPPT charge controller built-in to the wind turbine would still allow momentary voltage spikes up to 18 volts. Thinking this might not be great for the batteries, I added a second MPPT charge controller (Morningstar) after the wind turbine and that does a complete job of regulating the level of charge in the batteries not exceeding around 14 volts. If your situation is where the batteries are not typically kept fully charged then this might not be an issue for you. The second issue was how the seller handled a bearing failure 10 days into service for the new turbine. Manufacturing defects and part failures are an inevitable reality in any sort of small manufacturing business and here the seller handled the problem I think very professionally. I sent a couple of photos of the problem, and then was asked to return the unit to southern California for replacement. The same day it was received the seller shipped out a totally new replacement unit. In my mind, the seller turned this problem into an advantage. So, excellent product for my needs and nice to know that the support is there when it's needed.
Review: Lower power output than hoped for - Installed this on a 12' steel pole mounted to the side of a standalone garage in the desert in northern New Mexico. It's about 8' above the garage roof, and about 75' from any other structure, no trees in the area. Assembly was simple enough. The nose cone isn't secured in any real way, it's just a plastic lip holding it onto the body, so I expect that'll be the first part to go. While mounting it higher would've been recommended it's already high enough to catch wind that you cant really feel at ground level. We get some fairly extreme wind here, I've seen it flip a small camper/trailer on its side, so I was hoping for a higher output during storms. During good hard wind I've seen the included amp meter/break controller say 7 amps, 5 is much more common though so expect closer to 50-80 watts out of this thing. I'm considering it more of an overnight battery voltage maintainer than a true power source. Cool to have a little juice at night/when the sun is hidden, but the real charge comes from solar, and if I had put the money for this unit into more solar I could've easily gotten 5 times the output. Overall it's about what I expected, nothing really all that great, but not worthless.

## Features

- 【Effective Generation】Maximum power generation of 400W of DC power at 12V. Low 6.7mph cut in speed starts charging the battery during calmer winds. At maximum performance, the turbine can generate 400W, 33 amps.
- 【Wide Range of Applications】 Marine-grade, water-resistant materials help protect wind turbines against salt and UV damage. Also ideal for home applications substituting part of electricity usage with green energy. Portable, lightweight (22lbs) design allows for flexible uses. Ideal for marine, home, farm, and off-grid applications.
- 【Environmentally Friendly】Take a stride towards sustainability with our windmill. Designed to harness the abundant power of wind, it generates clean, renewable energy, significantly reducing carbon emissions and helping you leave a positive mark on the environment. It can take a chunk out of your electricity bill in ideal conditions.
- 【MPPT Charge Controller】Max power point tracker (MPPT) controller ensures that the generator kit supplies electricity to the battery at an ideal voltage where the maximum power is delivered. Overcharge protection automatic cutoff at 14.7V. Overspeed braking at 1250 rpm. Manual stop switch is designed to be easily accessible.
- 【Easy Installation and Maintenance】We take pride in our intuitive and easy installation process. Because of the high quality materials, the turbine requires minimal maintenance. The occasional inspection and lubrication is all that is needed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00RG2TF6U |
| Best Sellers Rank | #767,210 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,513 in Solar & Wind Power Parts & Accessories |
| Brand | Automaxx |
| Color | White |
| Customer Reviews | 3.6 3.6 out of 5 stars (34) |
| Engine Power Maximum | 400 Watts |
| Engine Type | Wind |
| Fuel Type | wind |
| Included Components | 1 x Turbine, 3 x Blades, 3 x Spare Blades, 1 x Nose Cone, 1 x Spare Nose Cone, 1 x Amp Meter, 1 x Brake Switch (Manual Stop Switch), 1 x Operational installation manual |
| Is Discontinued By Manufacturer | No |
| Item Weight | 16.8 pounds |
| Item model number | DB-400 |
| Manufacturer | Automaxx |
| Material | Other |
| Output Wattage | 400 Watts |
| Power Source | Wind Powered |
| Product Dimensions | 31.5 x 12.3 x 13.6 inches |
| Recommended Uses For Product | Residential, Off-Grid |
| Running Wattage | 400 Watts |
| Starting Wattage | 400 Watts |
| Voltage | 12 Volts |
| Wattage | 400 watts |

## Product Details

- **Brand:** Automaxx
- **Color:** White
- **Fuel Type:** wind
- **Item Weight:** 16.8 Pounds
- **Output Wattage:** 400 Watts
- **Power Source:** Wind Powered
- **Recommended Uses For Product:** Residential, Off-Grid
- **Voltage:** 12 Volts
- **Wattage:** 400 watts

## Images

![400W Wind Turbine - Image 1](https://m.media-amazon.com/images/I/21Oi0kVgc3L.jpg)
![400W Wind Turbine - Image 2](https://m.media-amazon.com/images/I/418QHjam9dL.jpg)
![400W Wind Turbine - Image 3](https://m.media-amazon.com/images/I/41IVPWVv3mL.jpg)
![400W Wind Turbine - Image 4](https://m.media-amazon.com/images/I/41Ii+beZXbL.jpg)
![400W Wind Turbine - Image 5](https://m.media-amazon.com/images/I/41RFxNBnCtL.jpg)

## Questions & Answers

**Q: what is minimum speed for the full maximum of 400 watts achieved?**
A: Good day Jimmy, thank you for asking this question. The minimum speed is 14m/s, please note that there are other factors to take into account as well as I have mentioned in your previous question.Thank you for asking this questionRegardsInfiniteMall Team

**Q: Hello - i have two questions:  is the mounting pole included in the package?  does the turbine rotate based on wind location?  thanks much.**
A: Good day Jerry, thank you for asking this question. The mounting poles are not included in the package but the instructions on what type of mounting pole we suggest using is in the instruction manual. You should be able to find the mounting pole at any hardware store.Yes, the wind turbine has a 360 degrees rotation which will allow our wind turbine to continuesly face in the direction the wind is coming from, allowing the wind turbine to maximize its potential in the specific area.I hope the answer has answered your question, should you has any further questions please don't hesitate to ask.Thank you once again for your question.RegardsInfiniteMall Team

**Q: What are the capabilities of the built-in mppt controller?  in particular, how does it relate to the current state of charge for the batteries?**
A: Good day Mr Hamm, thank you for asking this question. MPPT Charge Controller is a power point tracker to optimize the electricity generated by the Wind Turbine  to match the battery bank set up that you would have. The MPPT coverts a higher voltage output from the wind turbine down to the lower voltage needed to charge batteries.As the wind is unstable and not consistent there may be sudden surge and dips in electricity that is being generated. In order to control and get the most out of the wind turbines an additional Charge Controller is usually connected in between the wind turbine and the battery otherwise the battery may be damaged (which is very dangerous). MPPT charge controllers have a better efficiency than normal charge controllers. It is often very costly to find an MPPT that matches the wind turbines, that is why we included an MPPT charge controller that is built into the wind turbine to get the maximum output from the wind turbine. This we believe is the best way for an average Joe to instal a wind turbine themselves with minor knowledge of electricity.The MPPT will balance and stabilize the electricity before it is sent to your battery and therefore protecting you battery from a sudden surge or drop in power.I hope I have answered your question. If there is anything you are still unclear on, I have maybe missed or Should you have any other questions please don't hesitate to ask us again. Once again thank you for asking this question.RegardsInfiniteMall Team

**Q: Can I simply hook this up to a house to lower my bills?**
A: Good day Xevious, thank you for asking this question. This is a wind turbine which is a green power generator, if you would like to use this wind turbine to lower your electrical bill, we suggest you consult an green energy electrician so they can evaluate your situation individually for the best results.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Follow-up, and Nice Product
*by L***N on January 16, 2016*

I have several Internet repeater sites that are primarily solar powered. During the wintertime short days and stormy weather I've had to take a Honda generator to these remote locations to top off the batteries. Recently I added this wind turbine (see attached pic) and it's solved my power shortage. Typically when it's not sunny it's windy so it's worked out to be a good combination. The unit was not difficult to install, and all appears to be made out of high quality materials, like stainless steel bolts and nuts. A couple of issues. Since on sunny days my solar panel keeps my 360 amp-hours of batteries fully charged, the MPPT charge controller built-in to the wind turbine would still allow momentary voltage spikes up to 18 volts. Thinking this might not be great for the batteries, I added a second MPPT charge controller (Morningstar) after the wind turbine and that does a complete job of regulating the level of charge in the batteries not exceeding around 14 volts. If your situation is where the batteries are not typically kept fully charged then this might not be an issue for you. The second issue was how the seller handled a bearing failure 10 days into service for the new turbine. Manufacturing defects and part failures are an inevitable reality in any sort of small manufacturing business and here the seller handled the problem I think very professionally. I sent a couple of photos of the problem, and then was asked to return the unit to southern California for replacement. The same day it was received the seller shipped out a totally new replacement unit. In my mind, the seller turned this problem into an advantage. So, excellent product for my needs and nice to know that the support is there when it's needed.

### ⭐⭐⭐ Lower power output than hoped for
*by M***K on August 25, 2021*

Installed this on a 12' steel pole mounted to the side of a standalone garage in the desert in northern New Mexico. It's about 8' above the garage roof, and about 75' from any other structure, no trees in the area. Assembly was simple enough. The nose cone isn't secured in any real way, it's just a plastic lip holding it onto the body, so I expect that'll be the first part to go. While mounting it higher would've been recommended it's already high enough to catch wind that you cant really feel at ground level. We get some fairly extreme wind here, I've seen it flip a small camper/trailer on its side, so I was hoping for a higher output during storms. During good hard wind I've seen the included amp meter/break controller say 7 amps, 5 is much more common though so expect closer to 50-80 watts out of this thing. I'm considering it more of an overnight battery voltage maintainer than a true power source. Cool to have a little juice at night/when the sun is hidden, but the real charge comes from solar, and if I had put the money for this unit into more solar I could've easily gotten 5 times the output. Overall it's about what I expected, nothing really all that great, but not worthless.

### ⭐⭐⭐⭐ Augment your solar with a Wind Turbine.
*by G***R on June 14, 2016*

WINDMILL (DB-400) 400W 12V Wind Turbine Generator kit residential, agriculture & marine. Built in MPPT charge controller + automatic and manual breaking system & volt meter. DIY installation providing off-grid green energy power. This was my first attempt at getting power from the wind. The kit is user friendly in size and packaging, a hobby-type generator. Beautiful functional design that simply works. The biggest challenge is location and creating a sturdy tower 20 to 30 feet high. We used our planter boxes and rigged it like a sailboat, see picture . So far so good and soon with some wind it might actually generate power and augment my solar array. Would recommend for someone who would like to experiment with green power. Yes I'd buy it again.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-04*