AUTOOL BT30 · 3A FUSED OBD2 ECU MEMORY SAVER
AUTOOL BT30 OBD2 ECU Memory Saver Power Supply Cable (3A Fused)
Swap vehicle batteries safely without losing radio PIN codes, throttle body adaptations, steering angle calibrations, or customer presets.
- ECU Memory Saver
- 3A Fuse Protected
- 16-Pin OBD2 + Clamps
Engineered for Professional Workshop Demands
The AUTOOL BT30 is built to deliver speed, accuracy, and durability in busy service bays.
Uninterrupted 12V ECU Standby Power
Connects an auxiliary 12V battery to the vehicle's OBD2 socket so electronic control modules never lose power while the main battery is disconnected.
Built-In 3A Fuse & Reverse Polarity Diode
Protects the delicate OBD2 Pin 16 circuit and vehicle ECUs if a door is opened or the positive battery terminal accidentally touches ground.
Visual LED Connection Verification
Bright LED indicator confirms that backup power is properly flowing into the vehicle before you unbolt the main battery.
Saves Valuable Workshop Time
Eliminates post-swap window pinch relearns, steering angle sensor resets, throttle body idle relearns, and locked infotainment units.
ZERO DATA LOSS DURING BATTERY SWAPS
Keep Vehicle Electronics Alive in Standby Mode
Disconnecting the battery on modern cars wipes learned ECU fuel trims, triggers steering angle warning lights, and locks anti-theft radios. AUTOOL BT30 bridges standby power effortlessly.
- Retains radio/navigation anti-theft PIN codes and presets
- Preserves throttle body, transmission, and fuel trim adaptations
- Keeps power seat, mirror, sunroof, and clock memories intact
ENGINEERED 3A FUSE SAFETY
Calibrated Specifically for Vehicle OBD2 Port Limits
The vehicle's OBD2 power pin is only rated for low-current diagnostics and standby memory. The inline 3A blade fuse ensures excessive current can never melt dashboard wiring.
- Replaceable 3A standard automotive blade fuse
- Anti-backfeed diode prevents reverse current discharge
- Fully insulated copper-plated alligator clamps
SIMPLE 4-STEP WORKFLOW
Standard Operating Procedure for Every Battery Service
Turn off ignition and lights, clip BT30 to a 12V slave battery, plug into the OBD2 port, verify the LED, and swap the main battery with peace of mind.
- Always insulate the disconnected (+) battery cable from chassis ground
- Operate with ignition OFF and doors/lights closed
- Lightweight 120g cable stores easily in any tool chest
Technical Specifications & Hardware Parameters
Complete manufacturer-verified technical data and operating ranges.
| Brand / Model | AUTOOL BT30 ECU Memory Saver |
|---|---|
| Vehicle Connector | Standard 16-Pin J1962 OBD2 Male Plug |
| Power Connector | Red (+) and Black (-) Insulated Battery Clamps |
| Overload Protection | 3A Replaceable Blade Fuse |
| Operating Voltage | 12V DC |
| Indicator | Integrated LED Power Indicator |
| Cable Length | ~1.5 – 2.0 Meters Flexible Copper |
|---|---|
| Vehicle Coverage | All 12V Vehicles with 16-Pin OBD2 Port |
| Protected Systems | ECU, TCU, BCM, Radio, Seats, Windows, Clock |
| Net Weight | 120 g |
| Material | Oil-Resistant ABS + Flexible PVC Jacket |
| Warranty | 1-Year Official Otoeko Warranty |
Workshop Application & Operating Guide
Recommended 4-step standard operating procedure for accurate results.
Switch Off All Vehicle Loads
Turn the ignition OFF, remove the key, and switch off headlights, dome lights, and climate control.
Connect Auxiliary Battery & OBD2
Clip red (+) and black (-) clamps to a 12V helper battery, then plug the OBD2 connector into the car and confirm the LED lights up.
Replace the Main Vehicle Battery
Wrap the removed positive (+) battery clamp in a cloth/glove so it cannot touch chassis ground, and install the new battery.
Disconnect BT30
Once the new battery terminals are tightened, unplug the OBD2 connector first, then unclip the helper battery.
Conventional Methods vs. Professional Diagnostics
How precision engineering eliminates guesswork and comebacks.
Conventional / Basic Methods
- Disconnecting battery locks radio and triggers dash warning lights
- Loss of throttle adaptations causes rough idle after battery swap
- Dangerous 'engine running' battery swaps destroy alternators
- Unfused DIY jumper wires risk melting the OBD2 wiring harness
With AUTOOL BT30
- 100% retention of radio codes, presets, and ECU adaptations
- Zero dashboard warning lights or relearn procedures needed
- Safe, engine-off battery replacement workflow
- Inline 3A fuse protects both vehicle wiring and modules
Package Contents — Ready for the Workshop
Complete factory kit inspected prior to dispatch.
- 1 × AUTOOL BT30 OBD2 ECU Memory Saver Power Cable (3A Fused)
- 1 × User Manual & Warranty Card
1 Year Official Otoeko Warranty
The AUTOOL BT30 is backed by a 1 Year official Otoeko warranty against manufacturing defects, with full technical support.
Frequently Asked Questions
Key technical questions from technicians and workshops about the AUTOOL BT30.
Can I turn the ignition on while AUTOOL BT30 is connected?
No! Keep the ignition OFF and doors/lights closed. Turning on the ignition draws more than 3 Amps and will blow the protective 3A fuse.
Why must I insulate the disconnected positive (+) battery cable?
Because BT30 supplies 12V back through the vehicle electrical system, the disconnected (+) battery clamp remains live. Wrap it in a cloth or glove so it does not touch metal.
Which vehicles are supported?
All 12V cars, SUVs, and light trucks equipped with a standard 16-pin OBD2 port.
Is the 3A fuse replaceable?
Yes, it uses a standard automotive blade fuse that can be replaced in seconds.
What power source should I connect the clamps to?
Any healthy 12V automotive/motorcycle battery or a 12V DC jump starter pack.
What is the warranty period?
Backed by a 1-year official Otoeko distributor warranty.