JumpBox V6 Pro 400


  • Recommended for up to V6 Gasoline and 2.0 Liter Diesels engines. Most power sports models (ATV, PWC, UTV, motorcycle)
  • 12 Volt, 400 Amperes (<2s)
  • 19,980 mWh (19.98 Wh) power bank for long lasting power supply
  • 5400 mAh at 3.7 Volts
  • Battery charge lasts approximately 2.5 years depending upon ambient temperature, 3 to 4 times longer than lead acid batteries.
  • Over 20 starts with a fully charged battery
  • Internal microprocessor controlled cell balancer for added safety, starting performance and longer life

In stock (can be backordered)

Product Description

JumpBox V6 Pro 400
The JumpBox V6 Pro 400 comes with mobile phone connectors and has one USB port for rapidly charging any Smartphone.
StarkPower’s internal microprocessor includes a controlled cell balancer for added performance and longevity.

World Class Safety Features
StarkPower Smart Cables have a built in sensor that protects them from overheating and sparking by reversing the polarity. Our internal microprocessor regulates internal temperatures and controls cell balancing for added safety. The JumpBox functions in a wider range of temperatures than any other jump starter (from -4˚F to +140˚F.

The JumpBox V6 Pro 400 is smaller, more powerful and lasts longer than any other jump starter on the market.
At 5.0”(L) x 2.85”(W) x 0.75”(H) and weighing only .75 lb., the JumpBox V6 Pro 400 has the best size to power ratio of any lithium-ion jump starter on the market. Its 19,440mWh power bank ensures longer lasting power for when you need it most. The JumpBox has an expected battery life of 8-10 years as opposed to the industry average of 3 years. We at StarkPower work to be on the forefront of feature and safety innovations in the portable power industry.

1 review for JumpBox V6 Pro 400

  1. 5 out of 5

    All I can say is “Wow!!!” I own the JumpBox 400 and the JumpBox 1000. Both of them are incredible products. Period. This little thing is remarkable. The JumpBox V6 Pro 400 is one of the coolest “must-haves” I seen. It redefines the term “two-for” device.

    This little monster will jump up to a V6 engine (I ended up jumping off four different vehicles this past winter)… AND it’s small enough to fit in my pocket (about the size of a wallet) to charge my iPhone multiple times. It comes in great carry case, complete with detachable Smart jumper cables, USB charging cable with multiple device inputs (USB, Micro USB, Lightening/ iPhone 6 and up, old iPhone 5 and down/ iPad, etc.), a wall charger for the unit and a 12v/ cigarette outlet charger for the unit.

    I literally use this several times a week to charge a myriad for devices… and it will jump most midsize vehicles. What’s not to like? I’m an avid cycler, mountain biker and backpacker. It’s utility and light weight have caused me to make this a part of my gear list for every outing. What’s not to like?

    Do yourself, or a loved one, a favor. Pick one of these up, because the safety (ability to jump a dead vehicle battery) and utility (charge a gamut of devices and small enough to comfortably fit in a pocket or purse) are unmatched.

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