Eton Boost 4200 4,200mAh Backup Battery

Recharge Phones and Tablets on the Go

With 4,200mAh of power, this lithium-ion backup battery can recharge a smartphone about twice and also can charge your tablets. Thanks to its compact size, you can slip it into your pocket for on-the-go travel.

How Much Energy Is Left?

An LED indicator lets you know when the battery itself needs charging.

Good to Know

• One 2.1-amp USB port
• MicroUSB input for charging
• Condition: new
• Product dimensions: 5.1”x2.5”x0.4”
• Weight: 5.2oz.

For questions pertaining to this deal, click the Ask a Question button below. For post-purchase inquiries, please contact Groupon customer support.

Goods sold by Groupon Goods. View the Groupon Goods FAQ to learn more.