Need to pick up an extra battery for your Samsung Galaxy S5 smartphone? Swing by Amazon today and you’ll find a replacement battery and wall charger combo pack for a mere $17.50. And that’s not just one battery, mind you, this kit comes with two of them. Well, actually, you can score three batteries for only $6 more. The charger is perfect for those who like to come home and swap out a fresh battery or toss in a new one on the way to work. Going away for the weekend? Charge ’em all up ahead of time and leave the cables at home.