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TELWIN DYNAMIC 420 START: Reliable Starting and Professional Charging for 12/24V Batteries
Forget the flat battery that brings work to a halt at the worst possible moment. The TELWIN DYNAMIC 420 START is a dependable partner, built by Italian engineers for the demands of professional workshops, haulage companies, farms and demanding hobbyists. This powerful battery charger with a starting function stands for power, versatility and safety, and gets cars, vans, trucks, construction and agricultural machinery running in no time.
Picture this: a freezing morning, an important delivery is waiting and the truck engine refuses to turn over. Instead of losing valuable time and money on roadside assistance, you connect the TELWIN DYNAMIC 420 START and have the machine running again in moments. Thanks to its robust transformer design, the unit delivers a strong start current that can “wake up” even deeply discharged batteries, keeping downtime to a minimum and your productivity high.
But the DYNAMIC 420 START offers more than starting power. It also charges 12V and 24V lead-acid batteries (WET/START-STOP) safely and intelligently. With multi-step charging current adjustment you match the settings precisely to the capacity and condition of the battery, giving it the right working conditions and extending its service life. Built-in protection against overload, reverse polarity and short circuit protects the battery, the vehicle's electrical system and the unit itself, so you can work with complete peace of mind.
For years TELWIN has stood for quality and innovation in welding and workshop equipment. The DYNAMIC 420 START continues that tradition with a product that combines reliability, performance and simple operation. A clear ammeter lets you follow the charging process and the current drawn during starting in real time, while sturdy wheels and a carrying handle make it easy to move this powerful unit around the workshop. Invest in the TELWIN DYNAMIC 420 START and count on it in every situation.
Discover the Advanced Features of the TELWIN DYNAMIC 420 START 230V 12-24V
Reliable Starting Power: Your Guarantee of Mobility
The TELWIN DYNAMIC 420 START is a real workhorse when every second counts. At its heart is a powerful transformer designed to deliver an impressive start current of up to 400A (max cc). This means you can easily start petrol and diesel engines in a broad variety of vehicles, from compact cars through vans and SUVs to heavy agricultural and construction machinery and trucks.
Forget the frustration of a “dead” battery at a critical moment. Whether you run a professional workshop, manage a vehicle fleet or need reliable backup on a farm, the DYNAMIC 420 START gives you an immediate response and dependable starting. Because it works with both 12V and 24V batteries, it is an extremely versatile tool, ready for any job. It helps you cut downtime and save time and money, and keeps your vehicles ready for the road.
Smart Charging and Full Protection for Your Battery
The TELWIN DYNAMIC 420 START is not only about starting power, it is also an advanced battery charger that looks after the condition of your batteries. With four charging current settings, you can precisely match the operating parameters to each lead-acid battery (WET/START-STOP) with a capacity from 20Ah up to 700Ah. This flexibility ensures an optimum charging process, prevents overcharging and sulphation and directly results in a longer battery life.
On top of that, the DYNAMIC 420 START comes with a complete set of protection features. Protection against overload, short circuit at the clamps and, most importantly, reverse polarity eliminates the risk of damage to the charger itself, the battery being charged and the sensitive vehicle electronics. Work without worry, knowing that TELWIN's Italian engineering looks after the safety of your equipment and your work. The clear ammeter shows the progress of charging at all times and gives you full control.
TELWIN's Italian Robustness: Designed for Heavy Use
For decades the TELWIN brand has stood for top quality and reliability in workshop equipment. The DYNAMIC 420 START battery charger and starter is a good example of this. Its traditional, robust design based on an efficient transformer was created for intensive daily use under the demanding conditions of professional workshops, haulage companies and farms.
The unit is highly resistant to mechanical damage and its key components have a long service life. This is not equipment that will let you down at the worst moment. Practical transport wheels and an ergonomic handle make it much easier to move the DYNAMIC 420 START around the workplace and keep it comfortable to use despite its considerable power and solid build. By investing in TELWIN, you invest in peace of mind, dependable operation and equipment that will serve you for many years, bringing real savings and raising the efficiency of your work.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | TELWIN |
| Model | DYNAMIC 420 START 230V 12-24V |
| Full name | TELWIN DYNAMIC 420 START 230V 12-24V |
| Catalogue number | 829382 |
| EAN code | 8004897732848 |
| Supply voltage | 230V (50/60Hz) |
| Power (charging / starting) | 1.6 kW / 10 kW |
| Charging voltage | 12V / 24V |
| Charging current (effective) | 75 A |
| Rated charging current (to EN 60335-2-29) | 50 A |
| Start current (maximum cc) | 400 A |
| Rated start current (1V/C to EN 60335-2-29) | 300 A |
| Minimum capacity of the battery being charged | 20 Ah |
| Maximum capacity of the battery being charged | 700 Ah |
| Number of charging current settings | 4 |
| Supported battery types | Lead-acid (WET / START-STOP) |
| Overload protection | Yes |
| Reverse polarity protection | Yes |
| Short circuit protection at the clamps | Yes |
| Ammeter | Yes, analogue |
| Dimensions (L x W x H) | 305 x 360 x 630 mm |
| Weight | 16.9 kg |
Key Features and Benefits
- Powerful Starting Function (START): With a maximum start current of up to 400A, the unit easily starts petrol and diesel engines in cars, vans, trucks, farm tractors and construction machinery, even when the battery is heavily discharged. For a professional this means an end to downtime, vehicles quickly back at work and independence from outside help, which saves time and money.
- 12V and 24V Versatility: Working with both 12V and 24V batteries makes the DYNAMIC 420 START a universal tool for any workshop and vehicle fleet. There is no need to keep several units, which simplifies logistics and reduces equipment costs. One unit handles a car as well as a truck or a bus.
- Multi-Step Charging Current Adjustment: Four charging current settings let you precisely adapt the parameters to the capacity and state of discharge of the battery, from 20Ah up to 700Ah. This ensures an optimum and safe charging process, protects the battery against damage and significantly extends its service life.
- Complete Protection System: The unit is fitted with advanced protection against overload, short circuit at the clamps and reverse polarity. A professional can work calmly, knowing that the equipment, the battery being charged and the vehicle's electrical system are protected against accidental damage, which increases safety and minimises the risk of costly failures.
- Clear Analogue Ammeter: The built-in ammeter lets you continuously monitor the current during charging and the current drawn by the starter motor during assisted starting. This gives you full control over the process and lets you assess the condition of the battery and alternator, which is key to professional diagnostics and efficient work.
- Solid TELWIN Build and Mobility: The traditional transformer design ensures high reliability and resistance to harsh workshop conditions. The unit stands on sturdy wheels and has a convenient handle, so it is easy to transport and manoeuvre, even in tight spaces. It is an investment in durability and everyday comfort at work.
Applications
- Car workshops: starting and charging batteries in cars and vans.
- Haulage and logistics companies: keeping truck and bus fleets ready for work (12V/24V).
- Agriculture: starting tractors, combine harvesters and other farm machinery.
- Construction: battery service in construction machinery, excavators and loaders.
- Machinery and equipment service: versatile use in repair and maintenance work.
- Boatbuilding and marine: charging batteries on boats (in line with the battery specification).
- Demanding hobbyists and owners of several vehicles: reliable support for the private garage.
Summary: TELWIN DYNAMIC 420 START 230V 12-24V, Your Best Investment
The TELWIN DYNAMIC 420 START is more than a battery charger: it is your reliable energy specialist, providing fast starting for even the heaviest machines and professional charging of 12V and 24V batteries. With its solid build, versatile functions and advanced protection, you gain dependable operation and keep downtime to a minimum. Choose proven Italian technology and join the professionals who trust the TELWIN brand. Invest in the DYNAMIC 420 START today and feel the difference.
Catalogue number: 829382
EAN code: 8004897732848
