I'm new to this area. Ive been working on a circuit to turn on 6 leds and blink to conserve power. It will run in 10 to 15 second intervals running off an exising timiming circuit. I'd like it to run off of 2 cr2450 coin batteries or a 6v camera battery. Through my testing LED"s, i found that brightness is a function of current not always mcd's. Looks like 100mA drives most of the small LED"s I tested the best. I'm looking at led driver booster chips (linear LT3591) but not sure how much current it can handle. Also can i get that much current from coin batteries? Need long battery life too. I'm open fro suggestions on LED's as well.