• 6000A Peak Current for Heavy Duty Cranking

  • Recharges in Seconds from Running Vehicle

  • Light Enough to Carry at 20lbs

  • Performs at -40F to 150F

  • Heavy Duty Capacitors with Lifetime Warranty

  • No hazardous lead, acid or carcinogens


Cutting Edge Capacitor Technology Without the Drawbacks of Batteries

Maxx Start is an ultracapacitor jump pack specifically engineered for powerful jumpstarting. It uses Patented Ultracapacitors, and was developed by the engineering team at Slipstream.  

The Next Generation in Power

Due to technological advancements, capacitors are set to replace batteries in many applications worldwide.
Read about why capacitors are superior to batteries here. 

Industry Leading Power

6000 amps of cranking current, together with a higher available voltage than any battery based jumpstarter allows the starter motor can crank the engine at higher torque and RPM, increasing the success rate and speed of starting. 

 Fastest Recharge Speed of Any Commercial Jump Pack

Takes only 10-15 seconds to recharge from alternator after the vehicle starts, eliminating time consuming recharge from a 110V outlet. Forget the 12 hour recharge times needed for battery packs.

 Longest Lifespan of Any Commercial Jump Pack

One million maintenance free charges, backed by an eight year comprehensive warranty. You may never need to buy another jump pack.

 Heat/Cold Resistance

With operating temperatures of -40 F to 150F, Maxx Start does not need to be stored in a temperature controlled room like battery based systems.  

Safety and Sustainability

Unlike batteries which contain lead and acid, Maxx Start contains no harmful chemicals or carcinogens, making it safer for users and for the environment. 

Maxx Start Users

We trialed Maxx Start for 30 days and were impressed with its performance. Our fleet of transit buses is diverse and includes NABI, Van Hool, Gillig, New Flyer and El Dorado buses. we had no problem starting any of the buses. The nice features of Maxx Start are robust cables, powerful units, portable, & light weight. During the test, we did not have any issues, even with a Greyhound MCI bus with 4 completely dead group 31 batteries was jumped easily with Maxx Start.
— Renan Manzerano Technical Service Supervisor AC Transit, CA
We purchased several Maxx Start units for jumpstarting in the parking lots on campus. The officers like the fact that each pack is lightweight and can be stored in the vehicle without needing to be charged in a building. Until now we have been using quick connectors on our vehicles along with jump leads. These can drag in the dirt and snow and become dirty as well as difficult to store. Maxx Start gets everything started and charges up right away, which is especially handy during the game day rush!
— Irv Sikorski – Major, Technical Services, University of Notre Dame, Security Police Dept.
The City maintains a fleet of 480 vehicles and equipment (light and heavy duty). We bought two Maxx Start DieselStart units. The product is very forward thinking and innovative, it starts even our large diesels in winter. Keep up the good work.
— Scott Treadway - Fleet Operations Manager at City of Charleston, WV