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TELWIN DOCTOR CHARGE 55 CONNECT: Smart Charging, Diagnostics and Full Control of 6/12/24V Batteries.
Meet the TELWIN DOCTOR CHARGE 55 CONNECT, a groundbreaking multifunction electronic unit that will change for good the way you manage 6V, 12V and 24V batteries. Designed for the most demanding professionals and advanced hobbyists, this smart battery charger, tester and stabilised power supply is a true “doctor” for every battery type: WET, GEL, AGM, MF, PbCa, EFB and even modern lithium (Li) batteries.
Imagine a workshop where battery problems are a thing of the past. No more unexpected downtime, costly replacement of prematurely worn batteries or uncertainty about their actual condition. With its innovative Power Stream technology, the DOCTOR CHARGE 55 CONNECT delivers up to 50% higher charging efficiency than conventional battery chargers. This means not only that the battery is back in full working order sooner, but also a longer service life and optimum operating parameters.
And that is only the start. The unit offers a full diagnostic package: it tests the terminal voltage, the cranking capacity (CCA) and the condition of the vehicle's alternator. The recovery function brings sulphated batteries back to life, while the advanced Pulse Tronic charging programs take care of every detail, adapting the process to what the battery needs at that moment. All of this can be monitored and controlled remotely thanks to the built-in CONNECT connectivity.
The DOCTOR CHARGE 55 CONNECT is more than a battery charger: it is a reliable partner in your daily work. The SUPPLY function keeps the vehicle on a stable power supply during computer diagnostics, control unit programming or battery replacement, protecting sensitive electronics and preventing data loss. Every service job runs smoothly, safely and without surprises. By investing in the DOCTOR CHARGE 55 CONNECT, you invest in peace of mind, efficiency and top-quality service.
Discover the Advanced Capabilities of the TELWIN DOCTOR CHARGE 55 CONNECT 230V 6V/12V/24V
Power Stream Smart Charging and Advanced Pulse Tronic Care
The TELWIN DOCTOR CHARGE 55 CONNECT redefines the charging process by combining two key technologies. Power Stream is Telwin's own solution that optimises the charging curve, delivering current in a way that maximises the energy absorbed by the battery. The result is a charging time up to 50% shorter than with conventional battery chargers, without the risk of overheating or damaging the cells.
It is complemented by Pulse Tronic, a smart 8-stage charging and maintenance process. The system automatically analyses the battery condition (voltage, degree of sulphation, temperature with the optional sensor) and dynamically selects the optimum parameters for each of the 8 phases: TEST (condition check), DESULPHATION (pulse desulphation), ANALYSE (check of the ability to hold charge), MAIN CHARGE (charging at maximum current), FINE CHARGE (charging to full with decreasing current), VERIFY (charge verification), FLOAT (constant-voltage maintenance), PULSE (pulse recovery and long-term maintenance). As a result, WET, GEL, AGM, MF, PbCa, EFB and even LiFePO4 batteries are charged precisely, which translates into maximum performance and a much longer service life.
Full Diagnostic Package and Effective Battery Recovery
The DOCTOR CHARGE 55 CONNECT is a true diagnostic centre for batteries. The unit offers a series of tests that give a full picture of the condition not only of the battery itself but of the vehicle's entire charging system. The battery voltage test quickly shows the basic state of charge. The cranking capacity test (CCA - Cold Cranking Amps) checks whether the battery can deliver the current needed to start the engine, which matters most at low temperatures. The alternator test checks whether the vehicle's charging system works correctly and charges the battery effectively while the engine is running.
A particularly valuable function is RECOVERY, the desulphation and recovery program. Sulphation is the main cause of premature deterioration of lead-acid batteries. The DOCTOR CHARGE 55 CONNECT uses special current pulses to dissolve the lead sulphate crystals deposited on the plates, restoring lost capacity partly or completely. For a professional service shop, this means being able to offer customers a recovery service instead of an immediate, costly battery replacement, which builds their trust and loyalty.
Reliable SUPPLY Power and Protection of Vehicle Electronics
Modern vehicles are packed with advanced electronics that are extremely sensitive to voltage fluctuations. The SUPPLY function of the TELWIN DOCTOR CHARGE 55 CONNECT turns the unit into a stabilised power supply. This is invaluable during computer diagnostics, where a stable voltage is essential for correct communication with the control units. The same applies to programming or updating control unit software (ECU flash), where any instability in the power supply can cause irreversible damage to the module.
The SUPPLY function is also essential during battery replacement. Connecting the DOCTOR CHARGE 55 CONNECT before disconnecting the old battery keeps the vehicle powered (Memory Saver function), preventing the loss of radio and clock settings, on-board computer data, adaptive engine maps or comfort system configuration. A professional workshop will also appreciate being able to use the unit as a stable power supply during vehicle presentations in the showroom, so electronic features can be demonstrated without worrying about draining the battery.
CONNECT Connectivity: Full Control and Monitoring at Your Fingertips
The TELWIN DOCTOR CHARGE 55 CONNECT takes battery management to a new level with the integrated CONNECT function. Using Bluetooth technology, the unit can communicate wirelessly with a dedicated mobile app installed on a smartphone or tablet (iOS/Android).
With the app, you can monitor remotely the entire charging process in real time. You can follow the present voltage, current, charging phase and estimated time to completion without standing next to the unit. The app also allows remote control: selecting the charging program, starting tests or the recovery function. It often also gives access to the charging history and diagnostic reports, which is very useful when managing a vehicle fleet or documenting completed service work. This functionality greatly improves convenience and work efficiency and gives you full control over battery condition wherever you are.
Technical Specifications
| Parameter | Value |
|---|---|
| Full Product Name | TELWIN DOCTOR CHARGE 55 CONNECT 230V 6V/12V/24V |
| Catalogue number | 807614 |
| EAN code | 8056151818966 |
| Supply voltage | 230V AC, 50/60Hz, 1ph |
| Power | 600 W |
| Charging voltage | 6V / 12V / 24V |
| Effective charging current (6V/12V) | 45 A |
| Effective charging current (24V) | 23 A |
| Rated charging current to EN60335-2-29 (6V/12V) | 40 A |
| Rated charging current to EN60335-2-29 (24V) | 20 A |
| Start assist current (1V/C to EN60335-2-29) | 40 A |
| Minimum capacity of the battery being charged | 5 Ah |
| Maximum capacity of the battery being charged | 600 Ah |
| Supported battery types | WET, GEL, AGM, MF, PbCa, EFB, Li (lithium) |
| Number of charging current settings | Automatic (8-stage Pulse Tronic charging process) |
| Functions | Automatic and manual charging, Maintenance (Pulse Tronic), Battery test, Cranking test, Alternator test, Recovery (Recovery/Desulphation), Stabilised power supply (Supply), Start assist, Automatic voltage detection, Temperature compensation function (with optional sensor), Memory retention function (Memory Saver) |
| Connectivity | Yes, CONNECT (Bluetooth/Wi-Fi for remote management via the app - details may depend on the app version) |
| Protection | Against reverse polarity, short circuit, overload, overheating |
| Dimensions (L x W x H) | 325 x 100 x 160 mm |
| Weight | 3.5 kg |
Key Features and Benefits
- Power Stream & Pulse Tronic technology: The innovative Power Stream technology gives up to 50% higher charging efficiency than conventional battery chargers, shortening the time needed for a full charge. The advanced 8-stage Pulse Tronic charging process intelligently monitors and adapts the charging parameters to each battery type (WET, GEL, AGM, MF, PbCa, EFB, Li), providing optimum conditions, maximising battery life and preventing damage. For a professional, this means faster customer service, lower energy consumption and the certainty that every battery is treated individually, which translates into longer, trouble-free operation.
- Complete diagnostics and recovery: The DOCTOR CHARGE 55 CONNECT does more than charge. The unit performs precise tests of battery voltage, cranking capacity (CCA) and the condition of the vehicle's charging system (alternator). The RECOVERY function (desulphation) restores batteries that have lost capacity due to sulphation. This makes it possible to save many batteries considered worn out, which saves money and raises the quality of workshop services by offering customers full care of their batteries.
- SUPPLY function, stable power and electronics protection: During service work such as computer diagnostics, ECU programming, battery replacement or a vehicle presentation in the showroom, the DOCTOR CHARGE 55 CONNECT acts as a reliable, stabilised power supply. It delivers a steady current, protecting sensitive on-board electronics against voltage spikes and data loss (e.g. radio and on-board computer settings). For the mechanic, this means safe work and no costly problems caused by damaged electronics.
- Voltage versatility and battery compatibility: Support for 6V, 12V and 24V batteries makes this unit extremely versatile. It works with many battery types: conventional lead-acid (WET), gel (GEL), AGM, MF, PbCa, EFB (Start-Stop) and modern lithium (Li). Automatic detection of voltage and battery type (in selected modes) simplifies operation. The professional gets one tool for practically every vehicle, from motorcycles through cars and vans to trucks and machinery.
- CONNECT connectivity, remote monitoring and control: The built-in CONNECT function (usually via Bluetooth) lets you connect the unit to a smartphone or tablet using a dedicated app. You can then monitor charging progress remotely, change settings, view the work history and receive notifications. For a fleet manager or a busy mechanic, this means real convenience, more control over the process and a way to make better use of working time.
Applications
- Professional car workshops (cars, vans, trucks)
- Motorcycle and ATV/UTV service shops
- Vehicle fleet maintenance (transport, courier and taxi companies)
- Boat and watercraft service shops
- Advanced hobbyists and motoring enthusiasts
- Agricultural and construction machinery service shops
- Battery retailers (testing, formation charging)
- Car showrooms (keeping display vehicles powered)
Summary: TELWIN DOCTOR CHARGE 55 CONNECT 230V 6V/12V/24V - Your Best Investment
The TELWIN DOCTOR CHARGE 55 CONNECT is much more than a battery charger: it is your all-round battery specialist. With the smart Power Stream and Pulse Tronic technologies, advanced diagnostics, the recovery function and remote management via CONNECT, you gain full control, save time and money and, above all, guarantee top-quality service. Invest in reliability and innovation under the TELWIN brand. Choose the DOCTOR CHARGE 55 CONNECT and see how simple professional energy management can be.
Catalogue number: 807614
EAN code: 8056151818966







