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RZ-300mini - Rezervo Batteryless Jump Starter

Product Description
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Rezervo Mini Batteryless Jump Starter - RZ-300mini
  • Designed for both the professionals and DIY users. 
  • Simple and safe to use.
  • No batteries inside.
  • No need to wait hours to recharge.
  • Even starts vehicles without a battery.
  • Ideal for cold starts on engines.


New Features for RZ-300mini

  • Less wait time to charge up the capacitors
  • LCD Display - shows battery voltage, percent charged, reverse polarity and override
  • Alarm buzzer when fully charged or
  • activating override function
  • Compact and lightweight design with detachable cables
  • LED light for locating battery terminals
  • 12V battery trickle charger*


How it Works

The REZERVO batteryless jump starter uses ultracapacitor technology. It is able to harness the power from your weak battery and boost it to start your car.  With built-in intelligent circuitry designs, it also prevents you from making mistakes while using the jump starter.





12V DC 10A, 5V DC 2A

Starting Current


Working Temperature

-30°F to 140°F

Recharge Time from Battery

~60 seconds

Recharge Time from 12V Socket

~85 seconds

Recharge Time from USB

~25 minutes


  • For gasoline engines
  • Built-in Reverse Polarity and
  • Short Circuit Protection
  • Built-in voltmeter
  • No degradation in performance with subfreezing temperatures or age

WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Sku: RZ-300mini
Vendor: Jackco

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