*UPDATE* 9/21/17. Small enough to fit into the glove box, but powerful enough to start an engine. Costco has the Winplus Car Jump Start & Portable Power Bank on sale for …
*UPDATE* 7/28/16. This can recharge up to 1000 times. Costco has the Winplus Car Jump Start and Portable Power Bank on sale for $49.99 (after manufacturer’s instant rebate), now through …