Model: EM385 | Brand: AUTOOL
The AUTOOL EM385 is a versatile inverter programming power supply designed for automotive applications. It provides stable voltage for ECU reprogramming and diagnostic work, functions as a multi-stage intelligent battery charger for both lead-acid and lithium batteries, offers battery restoration capabilities, and can act as a jump starter. Its intuitive touchscreen interface and robust design make it an essential tool for professional and enthusiast use.
Always read and understand this manual before operating the device. Failure to follow safety instructions may result in injury or damage to the device or vehicle.

Figure 2.1: Nine Safety Protections
The AUTOOL EM385 is equipped with a comprehensive smart alarm system to ensure safety for both the equipment and the vehicle during the charging and programming processes.

Figure 3.1: AUTOOL EM385 Unit and Accessories
The AUTOOL EM385 unit comes with the main power supply, heavy-duty output cables with clamps, and a power input cable. It features a robust design with a convenient carry handle.

Figure 3.2: 4.3-inch Touch Screen and Emergency Stop Button
The device features a responsive touchscreen for selecting various modes and settings, along with a prominent emergency stop button for safety.
The AUTOOL EM385 offers several operating modes to cater to various automotive power and charging needs. Navigate through the modes using the touchscreen display.
Video 5.1: Endeview of AUTOOL EM385 functions, including power on, screen display, programming mode, fast charging, adjustable power, battery restoration, vehicle display, and forced start.
This video provides a visual guide to the main features and operational steps of the AUTOOL EM385, demonstrating how to switch between modes and utilize its core functionalities.
This mode is specifically designed to provide a stable voltage under varying loads during major vehicle ECU reprogramming and diagnostic work. It supplies current up to 150A with a voltage range of 9-16V, ensuring stable data transmission.

Figure 5.1.1: Programming Power Mode Interface
In Programming Power Mode, you can precisely set the output voltage within the 9-16V range to meet the specific requirements of vehicle ECU programming, ensuring a consistent power supply.
The Fast Charging mode supports both lead-acid and lithium batteries with a multi-stage intelligent charging process. It uses pulse charging initially, switches to high-power charging, and then to trickle charging to prevent overcharging.

Figure 5.2.1: Fast Charging Mode Interface
The device automatically adjusts charging power for optimal efficiency, stopping when the battery is full to prevent overcharging.

Abbildung 5.2.2: Kompatible Batterietypen
The EM385 supports a wide range of rechargeable batteries, including standard lead-acid, AGM flat, AGM spiral, EFB, GEL, LFP, and NCM lithium batteries.
This mode allows for adjustable voltage and current output, making the EM385 suitable for powering various external devices or for specific testing scenarios.

Figure 5.3.1: Adjustable Power Output Settings
The flexible output settings allow the EM385 to power a variety of automotive components or test equipment.
This battery maintainer mode can repair batteries that have been discharged for a long time or have suffered severe power loss, aiming to restore them to a usable condition.

Figure 5.4.1: Battery Restoration Process
The battery restoration function helps to recover batteries that are in an insufficient voltage state, extending their lifespan.
The display mode outputs an uninterruptible power supply and restarts automatically in case of power failure. This provides stable power support during vehicle display in showrooms and during battery replacement procedures.

Figure 5.5.1: Vehicle Display Mode in Use
This mode ensures continuous power to the vehicle's electrical systems, ideal for maintaining vehicle functions during demonstrations or when the main battery is disconnected.
The EM385 can provide a 400A starting current to easily jump-start car engines that are under 3.0T displacement. When the current exceeds 400A, the protection is triggered for 500 milliseconds, interrupting the output during the protection period.

Figure 5.6.1: Emergency Start Connection
Connect the power supply to the vehicle's battery terminals and then start the engine. The device provides the necessary cranking current.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Gerät lässt sich nicht einschalten. | No power from outlet; power switch off; damaged power cord. | Check power outlet; ensure power switch is ON; inspect and replace power cord if damaged. |
| Keine Ausgangslautstärketage/aktuell. | Incorrect mode selected; output cables not connected; internal fault. | Select appropriate operating mode; ensure output cables are securely connected; contact support if problem persists. |
| Überhitzungswarnung. | Insufficient ventilation; prolonged high-load operation. | Ensure vents are clear; allow device to cool down; reduce load if possible. |
| Battery not charging/restoring. | Incorrect battery type selected; battery too deeply discharged; faulty battery. | Verify battery type setting; for very low voltage batteries, try Forced Start mode briefly to raise voltage, then switch to restoration; battery may be beyond repair. |
For issues not listed above, or if solutions do not resolve the problem, please contact AUTOOL customer support.
| Besonderheit | Detail |
|---|---|
| Modell | EM385 |
| Nenneingangsvoltage | 110 Volts (AC) ±25% |
| Nenneingangsleistung | 1500 W |
| Eingangsfrequenz | 60 Hz |
| Leerlauf-Leistungsverlust | 6W |
| Ladestrom/Spannung von Blei-Säure-Batterientage | 40 A/12 V |
| Lithium Battery Charging Current/Voltage | 20 A/12 V |
| Anlaufstrom/Voltage | 400 A/12 V |
| Programmierstromversorgung | 150 A |
| Programmierung der Stromversorgungslautstärketage Reichweite | 9 bis 16 V |
| Adjustable Power Supply Current/Voltage | 20A/3.0-8.9V, 100A/9.0-16.0V |
| Effizienz | 81 % |
| Leistungsfaktor | 0.76 |
| Isolationsgrad | F |
| Schutzart des Gehäuses | IP21S |
| Technische Daten | 16 x 12 x 7 Zoll (417 mm x 316 mm x 188 mm) |
| Artikelgewicht | 22 Pfund |

Abbildung 8.1: Produktspezifikationen (Übersicht)view
A visual summary of the key technical specifications and physical dimensions of the EM385.
The AUTOOL EM385 comes with a Drei Jahre Garantie for any quality problems. AUTOOL is committed to providing new replacements or solutions until customer satisfaction is achieved without delay. The product also includes lebenslanger technischer Support.
For any needs or technical assistance, you are warmly welcomed to contact AUTOOL customer service. They aim to respond within 24 hours.
Please refer to your purchase documentation or the official AUTOOL website for specific contact details and the most up-to-date warranty information.
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