Micro-Boost Jump Starter and Charger

Part No: 540


All New 540 MICRO-BOOST Jump Starter and Power Unit with Quick Charge


  • New compact and ultra-rugged design with 15% more power than our previous 540 model
  • For use on virtually all V6 gas powered engines
  • Charges devices faster with quick charge output
  • Ultra-thin profile, weighing under a pound
  • Rugged jump start clamps with 100% copper inserts and anti-spark protection
  • Auto-shutoff feature to conserve battery life
  • Bright, multi-function LED flashlight
  • Compact version of other BOOST models

  • Micro-Boost Power Unit
  • Smart Start Cables
  • USB to Micro USB Cable
  • Carrying pouch
  • User Manual
  • Peak Amps: 500
  • Battery Capacity: 29.6 Wh
  • Input: Micro-USB 5V/2A
  • Output: quick charge 5V/9A, jump start 12V
  • Dimensions: 5.06" x 2.70" x .81" (unit) and 7.87" x 4.72" x 2.75" (packaged)
  • Weight: .45 lbs (unit) 1.54 lbs. (packaged)
  • AllStart products are manufactured to the highest quality standards. Horizon Tool Inc. offers a 1-year warranty for the repair, replacement or equivalent for batteries, jump starters and power banks found to be defective in workmanship or materials. Accessories including chargers and cables have a 6-month warranty for the repair, replacement or equivalent if the product is found to be defective in workmanship or materials. The warranty does not apply to any product that has been misused, abused or altered in any way. We reserve the right to conduct inspection of the product and any repair or replacement of the tool based upon this warranty will be approved by an authorized Horizon Tool Inc. representative. A copy of the proof of purchase for AllStart.com is required as well. The warranty applies to tools only supplied through AllStart.com. In no event shall Horizon Tool Inc. be liable for consequential, incidental, or specific damages resulting from or in any manner related to the product, it’s design, use or inability to use the same. If you have questions about your product or would like to schedule a warranty return, please contact Customer Service to get started. Please email us at info@calvantools.net or call (800)537-1077 Mon – Fri 8:00am – 5:00pm EST.
    Care of Your Li-Ion Battery: Tips to Prolong Lithium Battery Products Life Span
  • No batteries last forever (yet) but sticking, as close as possible, to the following guidelines will make sure your AllStart portable power source will reach its maximum potential and lifespan. Also, always make sure to read and follow all instructions from included product manual.
  • Keep/Store your batteries away from extreme temperatures. Ideally lithium batteries should be stored between 60°F and 80°F (16°C and 26°C) So don't leave or charge your device in your car if it's hot out! Extreme heat is by far the largest factor when it comes to reducing lithium-ion battery life. If the battery is being stored outside of ideal storage temperature ranges is it even more important to check state of charge on a regular basis. This rule applies during regular use as well. Do not allow the gauge to drop to zero during use. Give the product time to cool down and recharge. For safety reasons, do not recharge deeply discharged lithium-ion batteries if they have been stored in that condition for extended period.
  • Allow partial discharges and avoid full ones (usually). Unlike other types of batteries, lithium-ion batteries do not have a charge memory. That means deep-discharge cycles are not required. In fact, it's better for the battery to use partial-discharge cycles. The products will automatically shut-off after charging but it is always best to unplug when charge is complete. Pretty simple when your product is charged- unplug it!
  • Never allow complete discharge of lithium batteries. Although our products retain charge for a long time with very little self-discharge, never allow your battery voltage to go to low while in storage.
  • For extended storage, discharge a lithium-ion battery to about 40 percent and store it in a cool place. If there is planned storage without use for extended periods of time you should store lithium-ion batteries at 40 percent discharge and in a cool, dry place.
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