Dewalt's jump starter + air compressor combo is $40 off right now

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It's always a good idea to carry a portable jump starter with you in case of a dead car battery. Most of the jump starters on the market will likely get the job done just fine, but few offer any significant value beyond restarting your battery. This option from popular power tool brand DeWalt, however, is more than just a jump starter. It delivers 1,400 peak amps to jump start cars, trucks, SUVs, motorcycles, boats, RVs, ATVs and even tractors, but in addition to its jump-starting capabilities it's also a 120 PSI air compressor. On top of that, you can even use the device to charge electronic devices via USB too. It even includes a 1-year limited warranty. Normally the multi-tool costs $179.99, but thanks to this discount it's available for just $139.99 right now.