My original intention was to build a parallel pack of 4 x 3.6v 2400mAh lith-ion cells and direct drive a p7 LED. Since the voltage is the same I didn't think I would have a problem I have had a few discussions on this forum about this and I have been told that running a SSC P7 LED on a pack with out a driver can fry the LED. What is it that will fry the LED? It is the fact that the pack will be 4.2v freshly charged and with 4 cells the 4.2v will be sustained for too long? If so, are single cell configurations OK with 4.2 v because the 4.2v is not maintained for very long before the voltage drops? I have also been told that it is because there is more available current? If I am supposed to consider current like gas in the tank then why would too much gas be a problem. Or is it that too much voltage will cause the led to draw too much current.
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Thread: Direct Drive P7