http://www.chargerlab.com/nice-have-introduced-the-third-generation-aa-lithium-iron-battery-which-owns-3000mah/

Specification:

Product name:	Nice AA 1.5v 3000mAh Battery
Brand:	Nice
Capacity:	3000mAh
Voltage:	1.5V
Rechargeable:	No
Temperature:	-40℃ - 60℃
Weight:	15g(1pc)

Features:
1. Its 3000mAh capacity, making the battery 2-5 times more durable than traditional AA batteries.
2. It is only 15g/piece while alkaline is 23.5g and rechargeable Ni-MH is around 28g
3. It is raw material is more eco-friendly than alkaline.

Package inlcuded:
2 X Nice AA 1.5v 3000mAh Battery