Volt Lithium

Can a small 3 volt lithium cell battery be enough to power two led chip smd’s?
for atleast 8 hours and also can a 3 volt lithium cell be recharged
look up the rating of the battery in mA-hours. they come in many different sizes.
Assuming the LEDs are in parallel, look up the recommended current in mA, multiply by 2. Divide to get hours. For example the CR123A lithium cell has a capacity of 1400 mA-hour. If the LED is using 30 mA, you get 23 hours.
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