Features:
Brand New and high quality
Brand:Ultrafire 
Battery Type: 16340 Rechargeable Battery
Model : 16340( Replace for CR123A, , K123A, VL123A, DL123A, SF123A 123A )
Voltage: 3.7V
Capacity: 1800mAh 
Material: Li-ion Battery
For appliances like Camera,Flashlight, toys etc.

Specifications:
Size:about33.5*16*16mm
Color:blue 

Packing Content:
2 x 16340 Rechargeable Battery

Please note that these are not the 3.0 volt batteries.
Make sure your flashlight will handle these.

WARNING: 
1.New battery must first charge and then use , 
or the battery is most likely over-discharge ,
lead scrap.
2.The voltage of full charge and cut-off discharge is 4.2V and 2.75V. 
3.Don't heat,incinerate or reverse polarity. 
4.Please do not make the battery over discharge, over-discharge 
of lithium is not a failure but scrapped.