Lots of things need to use dry batteries in life.Do you hate to buy or change the batteries?Or in emergency you can't find the batteries?Now you can try this-Rechargeable Batteries Usb Port Lithium.

Features:

• USB Charge, No Need Charger——Built-in Micro USB port in battery, just plug to any USB port at anytime anywhere, no need charger or adapter any more. Quite easy, portable, and economical rechargeable lithium AAA batteries USB.
• Recharge 1000+ Times ——Recharge 1000+ times, save thousands of common batteries and dollars to reduce waster; and you make great contributions to environment protection; Eco-friend and Economical rechargeable lithium AAA batteries USB.
• 1-2h Charged —— Just plug in any USB port and have a fully charged lithium AAA batteries in less than 2 hours. Only need 1-2 hours to get 90% charge,Charge time may depend on device.
• Universal—— Common use to Toys, Game Controller, Wireless Mouse, Wireless Keyboard, Remote, Fan, Flashlight, Arm Clock, Head Lamp, Massages, Electric Shaver, Household Products and so on.

Details:

AA:

Size: Ф14.2mm * H50mm

Rated battery capacity: 1200mAh

Rated input voltage/current: 5V/500mAh

Rated output voltage/current: 1.5V/1A

Charging Temperature: Under 42 Degree

Life Time: about 1000+ times

When the indicator light is red, it is still in charge; when green, it is fully charged, taking about 1-2hours.

AAA:

Size: Ф10mm * H44.6mm

Rated battery capacity: 1000mAh

Rated input voltage/current: 5V/400mAh

Rated output voltage/current: 1.5V/1A

Charging Temperature: Under 40 Degree

Life Time: about 1000+ times