157Views3Replies

Author Options:

Battery Powered LED Strip Answered

Hi,

I have one 6V Alkaline Battery (or two 3V Coin cell battery) that i am using to light a fairy LED strip (see here). I'd like to know for how long the battery will last me for. Can you please direct me what parameters I need to collect for the battery (or the LEDs) and what equations i will be using to determine the operating time of the battery. Thank you for your support in advance,

Regards,

Discussions

The forums are retiring in 2021 and are now closed for new topics and comments.
0
Antzy Carmasaic
Antzy Carmasaic

5 years ago

Assuming the batteries are in series(most common setup):
2 CR2032 batteries in series = 3V * 2 = 6V
Wikipedia says typical capacity is 225mAh. In series, capacity remains the same for 2.

They run for 10 hours.
So current consumption per hour of lights = 225mAh / 10h = 22.5mA

So if the new batteries can provide 6V, look up their current capacity. Let's say it is X mAh. So they will run for (X / 22.5) hours.

0
Greensal
Greensal

5 years ago

i was aware of this information but if i am to use different set of batteries wouldnt that be different?