More than 125 million batteries are thrown away each year in the United States alone making battery waste a major contributor to landfill overcrowding. By making the switch to rechargeable batteries you can do your part to protect the planet and save money at the same time. The USB AA/AAA Battery Charger makes the switch easy by allowing you to recharge AA or AAA batteries with a standard USB port. Simply place the batteries into the terminals and insert the device into a USB port. At just 4.13 inches by 1.34 inches by .87 inches in size the gadget is compact and easy to take with you when traveling. Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri""sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} This USB AA / AAA battery charger is very convenient to charge your AA and AAA batteries. There are two independent charging channels for AA and AAA. The charger is easy to carry and store very convenient and easy to use meaning you can charge your batteries anywhere with a USB port safely and efficiently. This charger is perfect for the devices using AA or AAA batteries.