For its newsletter subscribers only, Newegg offers the Eagle Tech 10,000mAh External Battery Pack for Tablets and Smartphones, model no. ET-NP100K-WH, for $64.99. Coupon code "EMCWWWR84" cuts it to $22.99. With free shipping, that's $2 under our mention from last week and the lowest total price we've seen. (It's a current low by $42 and a very low price for a 10,000mAh battery in general.) It features two USB ports (2.1A and 0.5A) and automatically turns off when your device is fully charged. Deal ends November 21.