Originally Posted by
sknhgy
Thanks. Ummm. I got a question. 7.4 volts equals 5 AA's. My battery pack holds 4 AA's. Wouldn't those over-run my voltage?
They would certainly put out a higher voltage than your current pack. Whether that would hurt the light is another question and depends on how it is made. Since your original pack takes 4 NiMH cells it would be putting out just a bit under 5V, so any battery pack with a USB output would be a suitable substitute as long as you make an adapter for the physical connector.