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Official THINKCAR USA Store | Local U.S. Tech Support
Official THINKCAR USA Store | U.S. Tech Support
Thinkcar TJS-120 Portable Jump Starter – 12,000mAh 12V Battery Booster for Up to 6.0L Gas & 4.0L Diesel Engines
by THINKCAR

Thinkcar TJS-120 Portable Jump Starter – 12,000mAh 12V Battery Booster for Up to 6.0L Gas & 4.0L Diesel Engines

SKU 30000589
Availability:
in stock, ready to be shipped
Save 15% Save 15%
$122.99
$122.99 - $122.99
$122.99
$104.99
$104.99 - $104.99
$104.99

Powered by a 12,000mAh lithium battery, the TJS120 can provide up to 20 jump starts on a single charge and supports gasoline engines up to 6.0L and diesel engines up to 4.0L. Built-in safety protection helps protect both the user and vehicle with spark-proof technology, reverse-polarity protection, short-circuit protection, and over-discharge protection.

Key Features
  • Best For / User Type
    Up to 6.0L Gas & 4.0L Diesel Engines – Powerful enough to jump-start a wide range of 12V passenger cars, SUVs, light trucks, vans, and other compatible vehicles.
  • Core Diagnostic Capability
    12,000mAh Lithium Battery – High-capacity rechargeable battery provides portable starting power while maintaining a compact, easy-to-store design.
  • Maintenance Reset Value
    Up to 20 Jump Starts Per Charge – Get multiple emergency starts from a fully charged TJS120 under appropriate operating conditions.
  • System Coverage
    Advanced Safety Protection – Spark-proof technology plus reverse-polarity, short-circuit, and over-discharge protection provides additional confidence when connecting to a vehicle battery.
  • Ease of Use
    Portable USB Power Bank – Charge compatible smartphones, tablets, and other USB-powered electronics when you're away from a traditional power source.
  • Vehicle Compatibility / Coverage
    Built-In LED Flashlight + SOS – Integrated emergency lighting helps with nighttime jump starts, roadside repairs, and emergency signaling.
  • Ownership / Update Benefit
    Compact & Portable - Easy to keep in a vehicle, toolbox, emergency kit, service truck, or garage.

Free U.S. Shipping

Ships from our U.S. warehouse in 2–5 business days.Details

Easy Return

Shop with confidence. 30-Day Hassle-Free Returns.Details

USA-Based Technical Support

Real experts to help with setup & diagnostics

Specifications

Ease of Use

  • Skill Level

    Beginner – Attach clamps, check polarity indicator, press start.

  • Recommended For

    Drivers, technicians, and fleet operators who want professional-grade emergency starting capability in a portable device.

Connectivity

  • WifiNo
  • BluetoothNo

Software, Activation & Coverage

  • Compatible With12V gasoline and diesel engines up to 8L displacement; cars, trucks, SUVs, boats, motorcycles
  • Not Compatible With24V commercial truck systems; hybrid/EV high-voltage battery systems
  • Function NoticeFunctions and special services vary by vehicle. Contact support with VIN to confirm compatibility before purchase.

Whats Included

TJS-120 Jump Starter, Jumper Clamp Cables, USB Charging Cable, Storage Bag, User Manual
Warranty & Support
  • Manufacturer Warranty1-Year Limited Manufacturer Warranty
  • Support TypeUSA-Based Technical Support + Remote Assistance Available
  • Return Policy30-Day Hassle-Free Returns (Direct Purchases Only)
Shipping & Packaging
  • SKU 30000589
  • Model NumberTJS120
  • Ship MethodGround – Standard Parcel
  • Shipping Lead TimeShips from U.S. warehouse in 2–5 business days
  • Number of Boxes1