Ultrafire 3.7V 2400mAh LC 18650 Protected Battery 2-Pack - Free Shipping - DealExtreme
VS
UltraFire Protected 18650 3.7V 2400mAh Lithium Batteries (2-Pack Grey) - Free Shipping - DealExtreme
Or would you say they're the same?
I will need to purchase two more 18650 batteries to combine with the two i already have. I will be setting them up 2 in series and 2 in parellel so i get double the voltage and mAH for a school project. Any objections for safety issues?
thanks
VS
UltraFire Protected 18650 3.7V 2400mAh Lithium Batteries (2-Pack Grey) - Free Shipping - DealExtreme
Or would you say they're the same?
I will need to purchase two more 18650 batteries to combine with the two i already have. I will be setting them up 2 in series and 2 in parellel so i get double the voltage and mAH for a school project. Any objections for safety issues?
thanks