Portable Jump Starter: Revive Your Dead Car Battery In An Emergency

How important is your car battery? You may have had the experience of finding out when you left your lights on at the store or library. You came back to your car ready to move on to the next thing in your busy day and your battery was dead. It’s not your engine but, at that moment in time it is just as important or even more important to you.  What would you do? Before the advent of the portable jump starter, your only choices were to call the auto club or to get a good samaritan at the store or library to help you. Do you even have jumper cables? What are the chances that the good samaritan will have them? Do you even know how to jump start a car? Are you going to damage your car or the samaritan’s car?

Portable Jump Starter

Booster Pac ES2500 Portable Jump Starter

If you don’t know the answer to these questions, you need a portable jump starter. What’s that? A portable jump starter is really an additional battery that you carry with you that is specifically designed with features that makes starting your car in an emergency safe and reliable. In particular, portable jump starters are capable of generating an instantaneous surge of cranking power. When your battery is dead, it is the cranking power that jump starts your car. Think of it as a defibrillator for your battery. In much the same way that a doctor uses a defibrillator (electric paddles) to jump start a heart in the emergency room, a portable jump starter jump starts your battery.

Powerful Portable Jump Starter

Remember, in an emergency, you only get one chance to revive the battery. No matter what method you use make sure it is reliable and powerful enough to do the job. Typically jump starting a dead car battery requires a large cranking power surge to do the job. Depending on the portable jump starter, that may be all the juice available in the jump starter. In other words, for many devices, it’s a one-shot deal. Whatever charge is left is too little to jump start another vehicle.


A portable jump starter is easy to use. You may feel from what you’re heard or from your personal experiences with jump starting that it’s dangerous or complicated. Portable jump starters have built-in safety features to make the process much safer than using jumper cables. They have features like reverse polarity detection which warns you if you hook up the cables wrong. Spark proof connections make the connections much safer than jumper cables. The color-code cables included with the battery jump starter are designed for the instantaneous cranking power requirements of jump starting and so are a heavier gauge or thickness just for the purpose. You just connect the red clamp to the positive terminal and the black clamp to the negative terminal and then just start your car.
If it still sounds too complicated, please read our article How To Jump Start A Car Battery Safely and Correctly which walks step-by-step through the whole process.

Battery Jump Starter Comparison

TitleClore JNC660 'Jump-N-Carry' 1,700 Peak Amp 12-Volt Jump StarterClore JNC300XL 'Jump-N-Carry' 900 Peak Amp Ultraportable 12-Volt Jump Starter with LightPeak PKC0AO 300 Amp Jump StarterSchumacher PSJ-1812 DSR ProSeries 1800 Peak Amps Jump Starter and Portable Power UnitBlack & Decker JUS500IB 500-Amp Jump Starter with Built-in Tire InflatorJump-N-Carry JNCAIR 1700-Amp 12-Volt Jump Starter with Power Source and Air Compressor
Feature1700 peak ampere
Battery status indicator gauge
46 inch heavy-duty #4 cables
DC outlet to power 12 volt accessories
This item is not for sale in Catalina Island
900 peak amps and 225 cranking amp, with 27 inches of #4 gauge jumper cables
Full size clamps to penetrate battery corrosion
Equips with a high intensity work light
Note: This item is Hazmat and non-returnable
This item is not for sale in Catalina Island
Exclusive Low Charge Alert (LCA) Alarm signals owner when jumper needs charging
High impact resistant housing with rubberized sure-grip bottom and handle
Reverse polarity LED and alarm
5 LED battery power indicator
This item is not for sale in Catalina Island
1800 peak amperes, 280 cranking ampere and 225 cold cranking amperes
18 Ah professional grade, high output AGM battery
12 Volt DC power outlet
Built in automatic charger
LED indicators for charging, charged and battery status
500 Instant starting amps for maximum performance
120 PSI inflator for vehicle tires, sports equipment and more
Low-profile design for easy storage within vehicle or garage
Visual and audible reverse polarity alarms warn against improper connections to battery terminals
Ultra bright area light for increased visibility in dark areas
1700 peak amps and 425 cold cranking amps
PROFORMER battery technology for reliable cranking and charging
Extra-long 68" cables
Integrated air compressor with 12' coiled air hose with screw-on chuck
This item is not for sale in Catalina Island
WarrantyManufacturer90 Day parts warranty parts and labor2 Year Warranty
Height5.1 inch7.25 inch11.25 inch12.25 inch12.75 inch17.1 inch
Weight18 pound5 pound8.45 pound18.35 pound18 pound20 pound
Width14.1 inch7.75 inch6.38 inch8.75 inch6.75 inch16.5 inch
Length16.3 inch12 inch12.13 inch12.5 inch14 inch9.6 inch
Rating4.7 out of 5 stars4.5 out of 5 stars3.1 out of 5 stars4.2 out of 5 stars4.0 out of 5 stars4.5 out of 5 stars
ReviewsRead ReviewsRead ReviewsRead ReviewsRead ReviewsRead ReviewsRead Reviews
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Product prices and availability are accurate as of Jul 8 1:57:40 UTC but are subject to change. Any price and availability information displayed on the merchant site at the time of purchase will apply to the purchase of this product.

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  1. l

    you just connect the red clamp to the positive terminal and the black clamp to the positive terminal and then just start your car.

    ^^^ an unhelpful and dangerous typo

    • Mark Ridgeway

      Thanks for the catch. I have made the correction!