Groupon offers the MOTA 12,000 mAh Backup Portable Power Bank for Smartphones or Tablets on sale for $39.99 plus free shipping.

What makes this deal hot:
You save $60 off the retail list price after instant savings. That's the lowest price we could find currently.

What this does & Why you need it:
The MOTA 12,000 mAh Backup Portable Power Bank works great with a smartphone or tablet while you are on the go. This backup power bank claims it can charge an iPhone eight times, Samsung Galaxy four times, or an iPad mini up to two times. This features Portable battery pack, 12,000 mAh capacity, High-capacity battery for quicker charging, USB cable included, Dimensions: 5.3" (L) x 2.3" (W) x 0.8" (H), and more.