ok but im sorry to say that they are fake, MAX capacity for 18650 (bigger then 18500) are about 3200-3500mAh so no way that your 18500 are 4800mAh, do you know someone with an RC charger? then they can test the actual capacity.

As far as i can see the max capacity for 18500 is still under 2000mAh but technically it should be about 2400mAh MAX capacity for that size.

Only way your battery's can be 4800mAh is if they have some of the new tech that's being developed, but price should be 200$+ then.