I am putting together a project that will light up an outdoor area. I am using (3) high power, 3w leds (1.5V/700ma). The leds are in series and are preceded by a 'buck puck' led driver. I want to power them using (3) 18650 rechargeable batteries 3.7V & 3000mah each for a total of 11.1 volts. I'm trying to figure out how long this system would provide light before needing a recharge. I have tried a few online calculators, but am not sure of my entries or the results. Thanks for any help.
I assumed a total forward voltage = 6.5V (including led driver)
My other option is to power the unit with a 12v AGM or lead acid 7 ah battery via a lead plugged into a jack on the unit.
I assumed a total forward voltage = 6.5V (including led driver)
My other option is to power the unit with a 12v AGM or lead acid 7 ah battery via a lead plugged into a jack on the unit.