I bought two Ultrafire 18650 batteries for my Solarforce L2s. Charged them and both of them do not seem to work. The light comes on then goes dim or off. The L2 has the 5 mode module. Am I missing something? They work fine with 123As.
The L2 can either use two 123A batteries or a 18650.
From what I have read the 18650 lasts longer and performs better. Is this true?
If so, is there a recommended 18650 bettery and charger.
Thanks,