So, I'm no sparky, I have a pair of 3000mAh batteries for my ultrafire lamp and they are great for about 30 mins before they dim. I have looked on line and seen you can get 4000, 5000, 5300mAh batteries which I assume are going to give me a little more juice.
HOWEVER, I have also read that buying anything from China is a giggle at the best of times, sooooo...
Are you using the 18650 batteries?
Have you tried different mAh ratings and did it make a difference?
Have you bought any of sleezebay from China and were they any good?
Has anyone EVER got 3000 hours from am mAh battery? LOL