AUTOOL EM355 ECU Programming Power Supply and Battery Charger
US$520.00
- 10.8–16 V Programming Supply
- 120 A for Approximately 3 Minutes
- Up to 20 A Lead-Acid Charging
- Battery Restoration Mode
- 10.8–16 V Programming Supply: Set programming support from 10.8 V to 16 V or choose fixed 14 V while viewing live voltage and current on the color display.
- 120 A for Approximately 3 Minutes: Programming output reaches up to 120 A for approximately 3 minutes, with thermal protection reducing available current as the unit heats.
- Up to 20 A Lead-Acid Charging: Charge standard lead-acid, AGM flat plate, AGM spiral, or GEL batteries at up to 20 A; EFB uses External Charging with the battery removed.
- Battery Restoration Mode: Treat discharged or long-idle lead-acid batteries with the battery removed from the vehicle.
- Protected Output: Use reverse-polarity, short-circuit, overcurrent, and temperature protection, plus an emergency stop control.
- 10.8–16 V Programming Supply: Set programming support from 10.8 V to 16 V or choose fixed 14 V while viewing live voltage and current on the color display.
- 120 A for Approximately 3 Minutes: Programming output reaches up to 120 A for approximately 3 minutes, with thermal protection reducing available current as the unit heats.
- Up to 20 A Lead-Acid Charging: Charge standard lead-acid, AGM flat plate, AGM spiral, or GEL batteries at up to 20 A; EFB uses External Charging with the battery removed.
- Battery Restoration Mode: Treat discharged or long-idle lead-acid batteries with the battery removed from the vehicle.
- Protected Output: Use reverse-polarity, short-circuit, overcurrent, and temperature protection, plus an emergency stop control.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL EM355 · ECU Programming Power Supply & Lead-Acid Charger
Support ECU Programming, Then Recharge Lead-Acid Batteries
The AUTOOL EM355 combines an adjustable ECU power supply for programming, intelligent lead-acid battery charging, and battery restoration in one workshop unit. Select a programming voltage from 10.8V to 16V or use fixed 14V mode, follow live voltage and current on the color display, and switch to battery charging between jobs. A 2-meter pure copper cable gives you practical reach around the vehicle.
- 10.8–16 V Programming Supply
- Up to 120 A for About 3 Minutes
- 20 A Lead-Acid Charging
- Battery Restoration Mode
- 2 m Copper Output Cable
Key Features
Set Programming Voltage or Battery-Care Mode
10.8–16 V Programming Supply
Programming Power Supply mode offers 10.8V–16V adjustment and a fixed 14V option. Match the setting to the vehicle procedure while the EM355 supports the battery during work with your separate programming tool.
See Programming Power As You Work
The color display shows output voltage and current so you can follow the power supply during the job. Programming output reaches up to 120A for approximately 3 minutes; thermal protection reduces available current as the unit heats up.
Intelligent Charging Between Jobs
Fast Charging adjusts charging voltage and current to the battery’s condition, with a multi-stage charging process and a completed-charge indication. View voltage, current, and charging progress directly on the screen.
Select The Right Lead-Acid Battery Type
Choose standard lead-acid, AGM flat plate, AGM spiral, or GEL for the battery being serviced. EFB is available through External Charging with the battery removed from the vehicle.
Battery Restoration For Long-Idle Batteries
A dedicated Battery Restoration mode provides a treatment option for discharged or long-idle lead-acid batteries. Use it with the battery removed from the vehicle; the result depends on the battery’s condition and degree of sulfation.
Clear Controls And Workshop Reach
Physical arrow keys, OK, STOP, and Return controls make mode selection straightforward. The 2-meter pure copper cable and insulated clamps help you position the unit beside the vehicle.
Make The Display Comfortable To Read
Adjust screen brightness and choose English, French, German, Russian, or Spanish to suit the operator. Settings are separate from the power and charging modes.
Cooling And Output Controls
A high-speed fan helps manage heat during use. Reverse-polarity, short-circuit, overcurrent, and temperature protection support operation, with an emergency stop control when output needs to be stopped.
Live Output Monitoring Across Modes
Use the live output display to monitor voltage and current while setting up the selected programming, charging, or restoration task.
3 Years Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
How to Use
Select, Connect and Monitor the Power Mode
Prepare The Vehicle
Step 1 Check the vehicle procedure for its required support voltage and make sure the 12V battery is fully charged before programming.
Connect The Power Supply
Step 2 Use the correct, grounded AC supply for your unit and keep the ventilation clear. Follow the manual’s connection prompts, with red to battery positive and black to negative.
Select Programming Power
Step 3 Use the arrow keys to select Programmable Power Supply, press OK, and follow the battery and connection prompts.
Set The Output Voltage
Step 4 Choose Adjustable Mode and set 10.8V–16V with the arrow keys, then press OK. Fixed Mode supplies 14V; use it when that setting matches the vehicle procedure.
Run And Monitor The Job
Step 5 Confirm the displayed voltage and current, then carry out the vehicle procedure with your programming tool. Keep the power supply operating and monitor its readings until the procedure is complete.
Finish Before Changing Modes
Step 6 After the vehicle procedure is complete, stop output using the unit’s controls before changing settings or moving to another task. Follow the manual and vehicle procedure when disconnecting.
Safety & Compatibility
Match Battery Chemistry, Voltage and Task
Choose The Battery Type
Use the correct charging option for the battery label. EFB charging and Battery Restoration require the battery to be removed from the vehicle. This model supports the listed lead-acid battery types.
Match The Vehicle Procedure
For programming, start with a fully charged 12V battery and set the support voltage required by the vehicle procedure. Use the supplied manual to match the unit’s AC input version and connections.
Keep The Unit Ready To Work
Keep ventilation openings clear and use the unit in a dry, ventilated location. Stop output before changing settings; when ending charging, stop charging before removing the clamps.
Verify Polarity and Clamp Contact
Connect the clamps with correct polarity on clean, secure terminals before enabling output; stop output before removing them.
Size the Programming Session
Confirm that the selected mode, voltage range and available output match the vehicle procedure and expected transient load for the full programming event.
Model Comparison
Choose the Required Power-Support Modes
Model Guide
Choose one or more models. EM355 is selected by default.
| Product Name | EM355 | EM365 | EM385 |
|---|---|---|---|
| Power Input, Protection & Hardware | |||
| AC Input Version | 110V or 220V version | 110V or 220V version | 110V or 220V version |
| Input Frequency | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Rated Input Current | |||
| Cable Length | 2m | ||
| High-Speed Cooling Fan | ✓ | ✓ | ✓ |
| Output Protection | Reverse polarity; short circuit; overcurrent; temperature protection | Reverse polarity; short circuit; overcurrent; temperature protection | Reverse polarity; short circuit; overcurrent; temperature protection |
| Rated Input Power | 1200W | 1500W | |
| Enclosure Protection Level | IP21S | IP21S | IP21S |
| Insulation Level | F | F | F |
| Modes, Interface & Battery Support | |||
| Interface Languages | English, French, German, Russian, Spanish | Multilingual | Multilingual |
| Work Modes | Programming power; battery charging; battery restoration | Programming power; battery charging; battery restoration; vehicle display; forced start | Programming power; fast charging; battery restoration; vehicle display; forced start |
| Touch Screen | × | × | ✓ |
| Screen Size | Not stated | 2.8-inch | 4.3-inch |
| Multi-Level Intelligent Charging | ✓ | ✓ | ✓ |
| Car Exhibition Mode | × | ✓ | ✓ |
| Battery Restoration Function | ✓ | ✓ | ✓ |
| Charging Battery Types | Standard lead-acid; AGM flat plate; AGM spiral; GEL; EFB (external charging) | Standard lead-acid; AGM flat plate; AGM spiral; GEL; EFB (external charging) | Standard lead-acid; AGM flat plate; AGM spiral; GEL; EFB (external); LFP and NCM (removed from vehicle) |
| Programming & Output Ranges | |||
| Separate Adjustable Power Supply | × | × | ✓ |
| Adjustable Programming Voltage | ✓ | ✓ | ✓ |
| Programming Voltage Range | 10.8V–16V | 10.8–15 V page / 12–14.8 V manual — confirm supplied version | 9V–16V |
| Lead-Acid Charging Current | Up to 40A in-car / 20A external | ||
| Lithium Charging Current | × | × | Up to 20A |
| Separate Adjustable Supply Range | × | × | 3V–8.9V / 1A–20A; 9V–16V / 1A–100A |
| Momentary Starting Support | × | 400A / 12V | 400A / 12V |
| Maximum Programming Current | Up to 120A / approx. 3 min | Up to 150A / approx. 3 min | Up to 150A / approx. 3 min |
Manual & Support
Confirm Power Mode and Battery Fit
AUTOOL EM355 User Manual
Open the PDF manual for EM355 programming power, voltage selection, lead-acid battery charging and restoration mode, with operating safety and troubleshooting support.
Package Contents
Check Cables and Included Accessories
- Main UnitAUTOOL EM355 inverter programming power supply
- Battery Clamp CableBattery clamp cable
- Power CablePower cable; plug type may depend on regional version
- DocumentationAUTOOL EM355 user manual
- Retail BoxEM355 retail packaging
- Accessories
FAQs
Programming-Power and Charging Questions
Does EM355 Program The ECU Itself?
EM355 supplies battery power support during ECU programming. You use separate programming or diagnostic equipment and follow the vehicle procedure to carry out the ECU work.
Why Use Programming Mode Instead Of Battery Charging?
Programming mode lets you choose a support voltage for the vehicle procedure. Battery Charging follows a charging process that adjusts output as the battery charges. Choose the mode for the job you are doing.
Which Programming Voltage Should I Select?
Use the voltage specified in the vehicle procedure. Adjustable Mode lets you select the required setting; Fixed Mode supplies 14V when that value is appropriate.
How Long Is The Maximum 120A Output Available?
The manual specifies up to 120A for approximately 3 minutes in programming mode. At an internal temperature of 70°C, maximum current is reduced to 50A; it returns to the maximum when the unit cools to 50°C. Match the job to its output and duration requirements.
How Do I Follow Battery Charging?
Select the correct battery type and charging location, then follow voltage, current, and charging progress on the screen. The unit indicates when charging is complete.
Can Battery Restoration Help A Long-Idle Battery?
It provides a treatment option for discharged or long-idle lead-acid batteries. Results depend on condition and sulfation. Use Battery Restoration with the battery removed from the vehicle.
Does EM355 Charge Lithium Batteries?
EM355 is for the supported lead-acid battery types. Choose EM385 if you also need LFP (LiFePO4) or NCM lithium battery charging.
Which Model Adds Display And Starting Support?
EM365 adds Vehicle Display Mode and 400A/12V momentary starting support. EM385 adds those functions plus a touchscreen, lithium battery charging, and a separate adjustable power supply mode.
Where Can I Check Accessories And Setup?
See Package Contents for the supplied items. Open Manual & Download for the model-specific guide to menus, connections, and operating instructions.
What Warranty Support Is Available?
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Richard Rebecca ✓ Verified Purchase –
Worked perfectly to support recovery of my F-Pace's instrument cluster module…
Worked perfectly to support recovery of my F-Pace’s instrument cluster module and saved me $4k from not having to push through with the dealer’s proposed part replacement.
Baldwin Haggai ✓ Verified Purchase –
I am very happy with the tool as an emergency power source.
I am very happy with the tool as an emergency power source. I occasionally need to do some diagnostic work, and with it, I can easily do diagnostic work for several hours. This is really useful and efficient for me.
Solomon Whitman ✓ Verified Purchase –
I recently purchased the EM355, after receiving it I marveled at the function of…
I recently purchased the EM355, after receiving it I marveled at the function of this product, the product has on the market most of the same type of product, not only the function, can see AUTOOL very heart to do this product, the product’s material is very durable, the design is very heart, I think that this can be the product is very worth buying.