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D2U Alternators, Heswall (2026)

16/03/2026

🔋 Why Upgrade to a High-Output Aftermarket Alternator?

If you’re running demanding electrical accessories in your vehicle, a standard factory alternator often struggles to keep up. High-output aftermarket alternators are designed to deliver significantly more charging power, keeping your electrical system stable and your batteries fully charged — even under heavy load.

🚗 Perfect for High-Demand Setups

High-output alternators are ideal for vehicles running:

• Powerful car audio systems with large amplifiers

• Camper vans & overland builds with fridges, lighting, heaters, and inverters

• Winch challenge or off-road vehicles using high-draw winches and auxiliary lighting

• Work vehicles with extra electrical equipment

⚡️Key Advantages

1️⃣ More Charging Power
Aftermarket high-output alternators can produce much higher amperage than factory units, ensuring your battery receives enough charge even when multiple accessories are running.

2️⃣ Stable Voltage
Large electrical loads can cause voltage drop, which can reduce performance or damage sensitive equipment. A high-output alternator helps maintain consistent system voltage.

3️⃣ Supports Bigger Electrical Systems
Whether you’re running multiple batteries, large amplifiers, winches, or inverters, the extra output ensures everything operates reliably.

4️⃣ Reduced Strain on Your Electrical System
When the alternator is capable of supplying the current your accessories need, it reduces stress on batteries and wiring, improving overall system longevity.

5️⃣ Better Performance at Idle
Many high-output alternators are designed to produce stronger output even at lower engine speeds — ideal for vehicles that power accessories while stationary.

🔧 Upgrade with Confidence
A properly matched high-output alternator can transform the reliability of your vehicle’s electrical system, especially for enthusiast builds, work vehicles, and adventure rigs.

💬 Got questions about upgrading your charging system or choosing the right alternator? Drop a comment or message us and we’ll be happy to help.

16/03/2026

Due to extremely high demand, we are currently experiencing some delays with orders. We want to assure everyone that our team is working as hard as possible to get all orders prepared and sent out as quickly as we can.

We truly appreciate your support and patience while we catch up. Every order means a lot to us, and we’re doing everything we can to make sure you receive yours as soon as possible.

Thank you for bearing with us and for the amazing support! 🙏📦

10/03/2026

🔊 PRICE DROP – Sundown Audio M Series 12” Subwoofers 🔊

Dual 2ohm

2000WRMS

‼ ONLY 2 LEFT ‼

Originally part of a set of 4 Sundown Audio M Series 12” subwoofers, now only 2 remaining.

These subs were installed in a demo vehicle and have only seen around 2 months of light use, so they are in excellent / like-new condition, fully functional and extremely well looked after.

💪 Why Choose the Sundown Audio M Series?

The Sundown Audio M Series 12” is built for serious output. Designed to handle huge power while delivering deep, clean bass, these subs are perfect for:

• Demo builds
• High-output daily systems
• SPL setups
• Anyone wanting serious low-end performance

Key Features:

✔ Massive motor structure
✔ Heavy-duty suspension
✔ Very high power handling
✔ Built for both SPL and musical lows
✔ Premium Sundown Audio build quality

🛡 Warranty Included

Each subwoofer includes 12 months manufacturing defect warranty for peace of mind.

💰 Price – PRICE DROP

Was £499 each

🔥 NOW £399.99 each 🔥

If you're looking to build something loud, powerful, and reliable, these are ready to go.

📩 Message for more details or to arrange collection / shipping.

08/03/2026

⚡ MARCH POWER UPGRADE EVENT ⚡

Running a serious car audio system?

Your electrical system needs to keep up.

If you're experiencing:
• Voltage drop
• Dimming headlights
• Weak or inconsistent bass
• Amps not performing properly

…it’s usually a sign your system needs a proper power upgrade.

💥 15% OFF orders over £600 throughout March
Upgrade your system with the right electrical foundation.

🔋 Lithium Battery Upgrades

Upgrade from standard stock lead-acid batteries for stronger voltage stability, faster recovery and improved system performance.

(AGM batteries are also available as an upgrade option for those who prefer them or are cautious about lithium.)

If you’re unsure which option is best, message us and we’ll happily talk you through lithium vs AGM setups and help put your mind at ease.

⚡ High Output Alternator Upgrades

Keep your batteries charged and your system supplied with the current it demands.
Perfect for high-power amplifiers and multi-amp systems.

🔧 Big 3 Upgrade Kits

Reduce voltage drop and improve current flow through your vehicle’s electrical system.
Available as full kits or individual components.

🧰 Supply & Install Support

We can supply everything required for the job and offer guidance to help ensure your install is done properly.

Whether you're upgrading a daily system or building a high-power demo / competition setup, we can support your build.

Full Range of Power System Components Available
✔ Power cables (various gauges)
✔ Busbars
✔ Distribution blocks
✔ Fuses & fuse holders
✔ Terminals & terminations
✔ Heat shrink
✔ Complete power upgrade kits
✔ Individual components

Everything needed to build a reliable, high-performance electrical system for car audio.

📅 Offer valid throughout March

💸 15% off orders over £600

📩 Message us to discuss your setup and receive a bespoke quotation tailored to your application.

Whether you’re planning a simple upgrade or a serious high-power build, we can help make sure your system has the power it deserves.

⚡ More Power. Stable Voltage. Cleaner, Louder Sound. 🔊🚗

05/03/2026

High Output Alternators – Built to Support High Demand Electrical Systems

D2U Alternators specialise in high output charging solutions for vehicles requiring significantly more electrical capacity than the factory system can provide.

Our alternators are commonly used in car audio builds, off-grid camper systems, recovery vehicles, winch challenge trucks and other high demand applications.

Solutions are available for approximately 99% of vehicles.

If a direct option is not immediately available for your vehicle, we will work with you to develop or adapt a suitable solution.

Available output options:

• 170amp – £299.99
• 190amp – £349.99
• 210amp – £399.99
• 270amp – £449.99
• 320amp – £499.99
• 370amp – £549.99
• 400amp – £599.99
• 425amp – £649.99

Prices are up to the values listed above for an alternator supplied with an internal regulator, plus delivery.

Quantity discounts available:

• 5% discount when purchasing 2 units
• 10% discount when purchasing 3 or more units

As standard, alternators are supplied with internal regulators isolated from ECU / computer control, allowing consistent voltage output without interference from factory charging strategies.

Units are available with several preset voltage set points depending on the intended application.

Where adjustable voltage control is required, external regulator options are available at additional cost. These are commonly used in lithium battery charging systems, high power audio installations and specialist electrical setups.

Delivery

• UK P&P – £20
• EU P&P – £50

Lead Time

Current estimated lead time is approximately 8 weeks from order placement to shipping, although this can vary depending on seasonal demand and build backlog.

For enquiries, please provide vehicle make, model, year, engine type and details of the electrical load or system you are running so we can recommend the most suitable alternator for your setup.

27/02/2026

🔋⚡ **12KW AUDIO PACKAGE – ONE OFF PAYDAY DEAL** ⚡🔋
From **D2U Alternators**

Serious power for serious builds. No compromises.

We’ve combined our proven lithium technology with our high-output bespoke alternators to bring you a properly engineered **12KW capable setup** — built to handle real-world demo and competition systems.

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# # 💥 What’s Included:

🔋 **40Ah Lithium Battery**
Built using high-quality lithium cells and supplied with balancer included.
Designed for high discharge, stable voltage and brutal bass demands.

⚡ **340–400AMP Bespoke Alternator**
Custom built to suit your vehicle and engineered for maximum charging performance.

📌 **Once ordered, we will take your full vehicle details and produce the highest output alternator suitable to safely achieve the advertised power rating.**
Every unit is built specifically for your application — no generic off-the-shelf units.

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# # 🔧 Why This Package Works

✅ Built & Ready To Install
✅ Designed to Support 12KW Audio Builds
✅ High Idle Output
✅ Stable Voltage Under Load
✅ 14.2 – 15.5v Compatible
✅ Balancer Included
✅ 12 Months Warranty
✅ Engineered for Reliability

Whether you're upgrading your daily, building a demo car, or pushing serious competition numbers — this package keeps voltage strong and lights bright.

No dimming.
No voltage drop drama.
Just clean, consistent power.

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💷 **Usual Price: £1469.98**
🔥 **Payday Deal: £1099.99** 🔥

⚠️ One off February payday deal
⏳ 2 days only – until the end of February
📦 While stocks last

When they’re gone, they’re gone.

📩 Message us now to secure yours.

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🔌 We can also supply **cabling, fusing, terminations, and any other components required to complete your full power supply setup** — making D2U your one-stop solution for serious audio power.

23/02/2026

⚡️ D2U Alternators 15.4V DC-DC Chargers – Built for 6S LTO Systems ⚡️

Have you ever wondered about adding a high-power audio system to a top-of-the-range vehicle — without interfering with the factory charging setup or risking warranty issues?

Modern vehicles often run smart charging systems and tightly controlled voltage regulation. Modifying the stock charge system isn’t always desirable.

This is the answer.

https://www.d2ualternators.com/collections/dc-dc-converters

Our 15.4V DC-DC chargers provide a dedicated charging solution for 6S LTO battery setups, allowing you to support serious power demands while keeping the factory system operating as intended.

🔋 Input: 10–14.6V
🔋 Output: 15.4V (Optimised for 6S LTO)

🔥 Available Options:

• 60A DC-DC – Suitable for systems up to 3kW
• 100A DC-DC – Suitable for systems up to 5kW
• 130A DC-DC – Suitable for systems up to 7kW

✔ Units can be run in parallel for larger builds

⚙️ Where Does DC-DC Fit?

In most high-performance systems, the best solution is always a correctly specified high-output alternator.

However, in some vehicles that isn’t always possible — whether due to space limitations, smart charging systems, fixed voltage regulation, or specific set-voltage requirements.

That’s where DC-DC becomes the ideal support.

In some builds, upgrading the alternator simply isn’t practical. In others, the vehicle’s charging strategy prevents you from achieving the correct voltage for 6S LTO.

This is exactly where a properly integrated DC-DC system delivers the right solution.

You may:

✅ Run one alongside a D2U high-output alternator for maximum charging performance where your vehicle demands a specific set voltage or uses a smart charging regulator

✅ Use one where fitting a larger alternator isn’t practical

✅ Add a dedicated 15.4V secondary charge system while keeping the factory charging setup

✅ Fine-tune charging voltage specifically for 6S LTO banks

The right solution depends on the vehicle — and we’ll help you choose it.

📌 Important Installation Info:

• Input current approx. 35% higher than rated output
• Fuse at 35% above rated output current
• Minimum 0 AWG (50mm²) cable on BOTH input and output
• Must use 500A relay on input side
• 500A relay available if required

🔋 Complete Your Setup

Check out our 6S LTO batteries and all additional accessories required to make this system work correctly.

We can be your one-stop shop for alternators, DC-DC chargers, batteries, relays, wiring, and supporting components.

If you don’t see what you’re looking for on our website, send us a message — we’ll be happy to help.

https://www.d2ualternators.com/collections/dc-dc-converters

✅ 12 Months Warranty
✅ Full Installation Support Provided

Whether you need a high-output alternator, DC-DC support, or a complete charging strategy — D2U has you covered.

📩 Message us with your alternator rating and 6S LTO setup for compatibility confirmation.

20/02/2026

🔋⚡ 20Ah Lithium Battery – Built, Ready To Use ⚡🔋

From D2U Alternators

Serious power for serious builds.

Our 20Ah Lithium Battery is designed to comfortably support up to 6KW RMS audio installs — and in testing we have seen up to 11KW from these batteries in the right setup 👀🔥

Built using high-quality lithium cells and supplied with a balancer included, this is a solid solution for high-output car audio systems.

🔧 Specs & Features:

✅ Built & Ready To Use
✅ Tested up to 11KW
✅ 1200 CCA @ 0°C
✅ 14.2 – 15.5v compatible (stock charging setups)
✅ Balancer Included
✅ 12 Months Warranty
✅ Compact, lightweight & high discharge capable
✅ Can be built to higher capacity & voltage if required

🛠 Build time: 3–4 weeks

💷 £399.99

Whether you're upgrading your daily driver or building a serious demo/competition car, this battery delivers the performance and reliability you expect from D2U Alternators.

📩 Message us to order or order directly on the website!

https://www.d2ualternators.com/collections/batteries/products/20ah-lto-6kw-lithium-battery

🚚 UK Shipping Available

03/02/2026

VAG Fitment 200amp Alternator Sale

We’re offering a VAG fitment 200amp alternator complete with an external adjustable regulator, ideal for vehicles running small lithium battery banks or upgraded electrical systems.

Specification:

• Output: 200amp

• Fitment: VAG (VW / Audi platforms)

• Regulation: External adjustable regulator

• Adjustable voltage range: 13.5V – 15.5V

• Supplied ready to fit

Ideal for:

• Small lithium battery banks

• Upgraded audio or auxiliary systems

• Track, fast road, and daily vehicles

• Applications where stable adjustable charging is required

These are simple, reliable, cost-effective alternators — no gimmicks, just proven performance.

Price:

💷 £200 delivered (UK)

Limited availability.

For orders or questions, message the page directly.

27/01/2026

D2U Alternators – Payday Sale

From 28th January to 1st February, we’re offering 15% off selected high-output alternators, with free UK shipping included.

Alternators included in this sale:

• 270amp alternator
Normally £350 → £297.50

• 400amp alternator
Normally £550 → £467.50

• 500amp alternator
Normally £650 → £552.50

What’s included:
• Transpo F540HD 13.5-15.5v external regulator supplied FOC
• Free UK shipping
• Hand-built and load tested

Typical applications:

• Car audio systems
Suitable for sustained charging of large lithium banks and high-power multi-amplifier systems.

• Camper / van / off-grid systems
Well suited to lithium leisure batteries, high-power inverters and continuous onboard electrical loads.

• Recovery vehicles and winch challenge builds
Designed to handle high current draw from electric winches and auxiliary equipment under sustained load.

Please note:
We’re currently very busy behind the scenes building and testing units. We’ll respond to all enquiries as quickly as possible, but replies may take a little longer than usual. Thanks for your patience.

Sale period: 28th January to 1st February

For orders or technical advice, message the page directly.

02/01/2026

🎉 NEW YEAR KICKSTART SALE 🎉

We hope you all had a great Christmas and New Year 🎄✨

Missed out on our Black Friday sale? No worries — we’ve got you covered!

We’ve decided to launch this offer so you can put that Christmas money to good use 💰

⚡ 20% OFF all alternators 270amp – 400amp

⏳ Sale now on until 9th January

🌐 Order via our website and use code NY20 at checkout

👉 www.d2ualternators.com

📩 Or DM us to order

25/11/2025

🔥 BLACK FRIDAY MEGA SALE! 🔥

D2U Alternators is kicking off the biggest deal of the year — and it’s one you don’t want to miss! ⚡

From now until 01/12/25, get a massive 20% OFF ALL ORDERS, including our highly sought-after High Output Alternators! Perfect for car audio builds, off-road setups, and any ride that needs serious power.

⚠️ Please Note: Due to extremely high demand during the Black Friday period, delivery lead time is approximately 8–10 weeks. Every unit is built with precision, and the wait is well worth the performance.

🛠️ 20% OFF EVERYTHING

⏳ Approx. 8–10 Week Delivery on Black Friday Orders

📅 Sale ends 01/12/25

🚚 Premium quality, trusted performance

Don’t miss out — lock in your order now and upgrade your power game!

👉 Shop today and save BIG with D2U Alternators!

D2U Alternators

16/03/2026

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10/03/2026

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27/02/2026

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Monday	5pm - 12am
Tuesday	5pm - 12am
Wednesday	5pm - 12am
Thursday	5pm - 12am
Friday	5pm - 12am