As one of its daily deals, 13 Deals offers the Scosche 4,000mAh MagicMount Micro USB Portable Battery Pack in Black for $6.49 with free shipping. That's $4 under last month's mention and the best deal we've seen. (It's the lowest price now by $3.) Deal ends today.

Note: An iPhone lightning cable and USB Type-C version are available too for $8.48 with free shipping.