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The JUNOJUMPER V3 is a rugged, IP65, a lightweight external battery that houses an impressive 7,500 mAh battery pack capable of jumping a completely dead car battery in seconds. The multi-functional battery is equipped with a Japanese Seiko IC that features USB 5V 2.1A and 12V outputs, allowing it to charge power-hungry devices such as smartphones, cameras, tablets, and converting DC to AC via a 12V cigarette adapter. Users will never again have to worry about being stranded with a dead phone or car battery with this super-convenient external battery.

  • 7,500mAh battery: Jumps a completely dead car battery in seconds
  • Dual power outputs: Charge power-hungry devices like smartphones, cameras & more
  • 12V cigarette adapter: Converts DC to AC
  • Built-in smart cables: Send notification to users if cables are connected to the wrong terminal
  • Portable: For easy storage & carry

WARNING: DO NOT attempt jumping vehicles that require more than 750 Amps of power such as V8 trucks or Diesel trucks, as it may be harmful to the JUNOJUMPER battery.

NOTE: JUNOJUMPER V3 charges via Micro USB cable ONLY.


  • Color: Yellow
  • Materials: ABS
  • Dimensions: 6.3" x 2.8" x 1"
  • Weight: 12.5oz
  • Rated power: 12V (Max 750A)
  • Output 2: USB 5V 2.1A
  • Output 3: 12V/10A
  • Input: Micro USB (5V/2A)
  • Battery: 7,500mAh
  • Minimum cycles: 500+
  • Manufacturer's 1-year warranty


  • JUNOJUMPER V3 External Battery
  • Smartec Jumper Cables
  • USB Cord
  • AC USB Wall Adapter
  • DC to Cigarette Female Adapter
  • Protective Case
  • User Manual


  • Ships to US
  • Expected Delivery: Feb 1 - Feb 8


  • Returns accepted within 30 days of shipment for orders within the Contiguous US.