A dead battery can ruin your whole day -- your car battery, I mean (though a dead phone battery is pretty ruinous as well). Thankfully, portable jump-starters are inexpensive and plentiful; Amazon is lousy with them. Prices vary depending on peak current and other features, but typically start as low as $40 and run as high as $120.
I'm not sure I'd want the very cheapest jump-starter, but I'd certainly welcome a discount on a pricier one. Presto: Today only, and while supplies last, WorldUS via Amazon has the Tacklife T8 portable jump-starter for $55.97. That's after applying promo code QCKGF2TI at checkout. Regular price: $80.
