If you were able to find a CCA value on your car battery then this should be the minimum value you should be looking for when you choose your jump starter. Now that we have an understanding as to what all of the amp values mean on our jump starter we can start to put the pieces together. The rating is defined as the number of amperes a lead-acid battery at that temperature can deliver for 30 seconds and still maintain at least 1.2 volts per cell (which equates to 7.2 volts for a 12 volt battery). Cranking AmperesĬranking amperes (CA), also sometimes referred to as marine cranking amperes (MCA), is the amount of current a battery can provide at 32 ☏ (0 ☌). The rating is defined as being the current a lead-acid battery at that temperature can deliver for 30 seconds and still maintain at least 1.2 volts per cell (which equates to 7.2 volts for a 12-volt battery). Cold Cranking AmperesĬold Cranking Amperes (CCA) is the amount of current a battery can provide at 0 ☏ (−18 ☌).
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However if you also want to run accessories off the jump starter, via a mains power inverter or 12V DC Port, then peak amperes becomes important in determining how long you can run your devices before the battery in your jump starter needs to be charged. What you need to know are the Cold Cranking Amperes (CCA) or Cranking amperes (CA) of the jump starter as these directly tell you how your jump starter will perform. It is not however very useful in helping you decide which is the best jump starter to start your car and in the most part can be ignored. Peak Amperes is the total amount of current a battery can deliver. If for some reason you can’t locate the CCA value on the battery you may find a recommended battery size for your vehicle in your manual.īefore we continue we need to understand what CCA actually means and why it is critical to sizing our jump starter. Most batteries will have this information printed on the side or top of the battery.
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You can use a large jump starter on a small car but you cannot use a small jump starter to start a large vehicle.Īrmed with this information you need to look at the battery in the largest vehicle and note what the CCA value of the battery is. If you only have one vehicle that you wish to use the jump starter on then choosing a jump starter is an easier task, if however you have multiple vehicles that you want to be able to use the one jump starer on then you need to size your jump starter on the largest of the vehicles. What size jump starter do I need? Before we look at answering this question we need to look at how the jump starter will be used.
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Transform 20V tool batteries into a portable automotive battery booster Aids in starting vehicles and charging personal electronics, all from DEWALT tool batteries.
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It runs off our 20V Max battery platform, so it’s compatible with all DEWALT® 20V Max and FLEXVOLT® batteries. Featuring an integrated work light and USB power out, this jump starter has everything you need in one place. The 20V Max Cordless Professional Battery Booster jumpstarts 4-cylinder, 6-cylinder, and certain V8-powered vehicles.