I Swear By This Portable Car Battery, and It's $45 Off for Prime Day
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Prime Day 2025 is here from Tuesday, July 8 to Friday, July 11, and Lifehacker is sharing the best sales based on product reviews, comparisons, and price-tracking tools.
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I'm old enough to remember a time when finding out your car's battery died meant you would be stranded for hours and probably have a long walk ahead of you. The invention of the cell phone made that less of an issue, but the real savior in this scenario is portable batteries. And this one from Noco is the one I can't live without. For Prime Day, it's down to about $80 from its original price of $125.
NOCO Boost GB40: 1000A UltraSafe Jump Starter $79.96 at Amazon $124.95 Save $44.99 Get Deal
Get Deal $79.96 at Amazon $124.95 Save $44.99 This little gizmo packs a 1000A 12V battery, which is capable of jumping your car when it won't start. It comes with a special jumper cable attachment that plugs directly into it, and has a short length of cable to go to your car's battery terminals. The whole package is so small that it can fit under a seat, or even in your glove box if it's roomy enough.
On top of that, it also has a built in flashlight and USB ports you can use to charge your phone. I keep a lot of emergency tools in my car, but this is the one I've needed to turn to more than any other. It's an absolute lifesaver if you or a loved one ever find yourself without power. Just keep in mind that this is good for jumping your car, but you should still make sure your car's battery (and alternator) are in good working order afterwards.
I've bought this model for myself at least three times, mostly because I've lent them out to friends who were having car trouble. It's such a small price to pay for peace of mind.
Looking for something else? Retailers like Walmart, Best Buy, and Home Depot have Prime Day competition sales that are especially useful if you don't have Amazon Prime.
Walmart's Prime Day competition sale begins at midnight on July 8 and will include deals up to 50% off. It's an especially good option if you have Walmart+.
Best Buy's Prime Day competition sale, Black Friday in July," runs through Sunday, July 13 and has some of the best tech sales online. It's an especially good option if you're a My Best Buy Plus" or Total" member.
Home Depot extended its 4th of July sale through at least July 9, competing with some amazing deals of its own. It's an especially good option if you're looking for power tools, appliances, or outdoor equipment.