DIY High Power LED Rechargeable Flashlight

[squeeforever]

Originally Posted by sikeston34m

I tested it for about 10 seconds at 3.7 volts. It was pulling 2.7amps and heated up to about 140 degrees.

140 degrees in 10 seconds.

I believe some serious thought needs put into the heat sinking thing, but it does appear it's going to be worth it.

Told ya it would need a heatsink.