will 2 led's on a 5volt lithium 500mA battery make the battery die much quicker?

[danwelsh]

Hello people, I'm wondering if you guys can answer a few questions I have about the mod box I just built as I'm fairly new to modding so here goes, I used a fusion battery charger 5volt battery(desoldered battery then wired it in my box for my power), then did the usual wiring to connector, button,kill switch and led but I didn't use a resistor, should I have?It hasn't blown yet and i've been vaping all day with it, also I noticed that before when i wired a resistor to one of my other boxes the light from the led was way dimmer than without, that's why i didn't put a resistor on this one....also i want to put another led in the box as i'm looking for the glow effect inside the box(i'll post pics tomorrow, it's a beer on tap handle), so how much battery power will 2 led's use and should i use two seperate resistors, also what color resistors? As far as charging goes, i used an rca jack female end for the box, and wired a male end to the charger where the battery was, it works like a charm. :>) I must say this is very addictive stuff these mod boxes

 

[Java_Az]

all LED's are not made the same but i would say the average amp draw is between 10mA to 30mA. So yes they do use current but more then likely wont affect the battery cycle that much. Might cost you a puff or two if they are set up to only come on when the switch is pressed. They say to always use a resistor with the LED even if it is just one ohm to keep current spikes from shorting the life span. Not that i always follow that advise, running at low voltages they last a long time.

 

[danwelsh]

ok, thanks for the info, much appreciated

 

[asdaq]

Also LED's are to be run at specific voltages depending on which you have. The cheap common ones we get our hands on are around 3v. I've been buying 'super bright' but there is no documentation with them so I only suspect they are 30-50mA instead of 10. The value of resistor you put on affects the brightness you get, if you put 470Ω it would be about right for an indicator light sticking out of a box and probably not blinding. For recessed or a glow effect, 200Ω or 100Ω would be much brighter. I've been using 100Ω at 4-5v and like the results.