Best Jump Starter Guide

April 16, 2024



JNC300 portable jump starterClore JNC300 XL Portable Jump Starter

Are you looking for an ultralight, ultra portable battery jump starter?  While the Clore JNC 660 is a great all around jump starter, it’s little brother, the JNC300 may be just the right jump starter for you to carry with you at all times.  In this review, I will provide the positives and negatives of the 300 as well as provide some insight into the differences of the two products from the Clore Company.

Get the lowest price on the Clore JNC300XL ‘Jump-N-Carry’ 900 Peak Amp Ultraportable 12-Volt Jump Starter with Light

Here are the Features of the Clore JNC300 Ultraportable Jump Starter

  • 900 peak amps and 225 cranking amps
  • 27 inch #4 gauge jumper cables to get to hard to reach batteries
  • Full size clamps to prevent battery corrosion
  • High intensity work light for any night emergency
  • Famous Clore Proformer battery for long life

The Jump-N-Carry 300 has plenty of power to jump start most passenger vehicles.  The Proformer battery holds a charge and is very easy to recharge when necessary.  The full size clamps will really grab hold of the battery terminals.  If you have every owned a jump starter or battery Clore JNCProformer batterycharger with the smaller clamps, then you know how important the full size clamps are.

The work light can be a life saver.  Have you every changed a tire in the dark by the side of the road?  With the built in light, you will never have to worry about this again.

There several benefits that the JNC300 has over it’s big brother 660.  First and foremost is the lighter weight of the 300.  The smaller XL is actually half the weight at 9 pounds versus 18 pounds.  Because of the smaller size and weight, there is a much greater chance that you will keep the jump starter in your trunk rather than leaving it in the garage where it will not help you when you are stranded with a dead battery.

Another benefit is price.  The 300 is approximately half the price of the 660.  This is a great benefit if the smaller unit fits your needs.

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What are the Differences Between the JNC300 and the JNC660?

There are a few important differences between the larger and smaller battery jump starters.  As mentioned above, price and weight are a big part of the equation.  There are other factors however that relate to how you will be using the jumper.  The 300 is really suitable for anyone who wants to carry a portable jump starter and safety light with them at all times.  The Clore JNC660 will handle those tasks as well as have the ability to start several vehicles before needing to be recharged.  It also provides substantially more power initially so is more suited to commercial use or use in extremely cold weather conditions.

Again, it is important to understand how you will be using a jump starter before you purchase either one of these products.  With that said, both of the Clores are in the Amazon top 100 automotive products and have been for a very long time.  They also come with an exclusive feature that no other similar product offers.  On top of the standard one year warranty, Clore offers a repair service coupon.  This coupon enables you to get your jump starter repaired at a one time fixed price, no matter what the cause of the damage is!  This provides you with great peace of mind knowing that any time your JNC is damaged, Clore will repair it.  That is the mark of a great company.

Get the lowest price on the Clore JNC300XL ‘Jump-N-Carry’ 900 Peak Amp Ultraportable 12-Volt Jump Starter with Light

What is the Verdict?

It is easy to see why the Clore JNC300XL is a perennial best seller at Amazon.  It couples a low price with light weight and plenty of power for every day use.  If you need a portable jump starter to carry with you in case of an emergency, the 300 is our top choice.

Customer Reviews

Nice, Compact, Works

by H. Stewart

We purchased the JNC300XL about a year ago to power a camera system we were developing for a truck. We needed 12Vdc vehicle power while in the lab and in the field for testing off the vehicle. It charges quickly, holds a charge for months and is light and compact. Last summer my wife called to say she was first in a left turn lane on a busy expressway and her car stalled and would not start. I grabbed to JNC300XL where it had set for months without a charge and off I went. I connected it to her battery and it provided plenty of power to turn over her fair sized V6 engine and start the car. The nice thing is it was a quick hook up. I wasn’t in the middle of a busy road trying to get my car close enough to her car to string a couple of jumper cables. It is great for powering gadgets that normally plug into a cigarette lighter for power. You unplug the “flashlight” on the front of the unit to access the cigarette lighter plug. As with all batteries it should be charged every several months to keep the batteries from becoming un-chargeable. Since it is a sealed spill proof lead-acid battery like a car battery it does not have a memory nor will it be damaged by being topped off once in a while. It will die if left discharged for a long period.  Read More…

Jump N Carry Jumpstarter

by Gary London

I already had a JNC 660 for my truck and wanted to put smaller units in each of our cars. I bought 3 of these, then 2 more for Christmas gifts. They are easy to use and much more dependable than the cheap imports with lots of whistles and bells…. I prefer the larger unit for my dodge 1500 with a V-8 (I’ve jumped it 5 or 6 times between charges without a problem… electrical trouble…) This smaller unit is great for our Toyota 4 cylinder cars and Chrysler Concorde with a 3.5 6 cylinder. These beat the heck out of jumper cables, and my daughter and wife don’t have to ask strangers for help… Read More…


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