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Portable Jump Starter 18AMP
  1. MJS400AINSTANT POWER W/18AMP JUMPSTART

  1. List Price:
    $179.45
  2. Add to Cart * All prices shown in US dollars.
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MJS400A INSTANT POWER W/18AMP JUMPSTART

Features & Benefits

  • Jump start features maintenance-free 18 Ah battery; delivers 850 peak amps and 250 crank assist amps.
  • Master ON-OFF switch completely locks out internal battery at clamps for added safety, eliminating accidental shorting of clamps and battery drain.
  • Equipped with reverse polarity protection audible alarm indicates reversed clamps.
  • Easy-to-read battery status LED array tells when internal battery is at full power, 75% charged, or 50% or less.
  • Separate LED's for monitoring recharging status.
  • Heavy-duty 300 amp metal clamps for solid connections to top or side post batteries.
  • #4 gauge, 28 in. cables with excellent cold weather flexibility.
  • Built in automatic recharging system.
  • Includes flexlight for emergency needs.

Return Policy *

  • Return for refund within: 30 days
  • Return for replacement within: 30 days

* Applies to purchases made on matcotools.com only; see your Matco distributor for warranty or return information on purchases made elsewhere.

Rated 1.5 out of 5 by 2 reviewers.
Rated 1 out of 5 by worthless jump box, does not do what its intended for Bought jump box and when fully charged it won't jump a severely discharged battery. Replaced jump box only to get same result. Returning to Matco. December 2, 2013
Rated 2 out of 5 pure junk didn't even last a week. And the replacements battery cables clamps broke after a few uses... 4 times. Junk! Junk! Junk! May 1, 2012
  • 2015-08-29T10:59:49.833-05:00
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