How many amp will this led draw from the battery? (186500)
https://www.fasttech.com/products/1136807
https://www.fasttech.com/products/1136807
How many amp will this led draw?
- Thread starter kje
- Start date
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LilKevin715
Enlightened
I didn't know they made 186500 li-ion cells, thats a REALLY long cell.:nana:
The LED will draw as many amps as it can from the battery at the voltage of the battery under load. Also known as direct drive.
CfabStudios
Newly Enlightened
- Joined
- May 8, 2013
- Messages
- 24
the 18650 batteries are 3200 milliamps the link you posted specifies it can draw up to 1500. so 3200/1500 equals 2.3 hrs to drain the battery
DIWdiver
Flashlight Enthusiast
If you direct drive, it will depend on many things, some of which are within your control, some aren't:
1. Battery quality
2. Battery state of charge
3. Battery temperature.
4. LED temperature.
5. Wire size and length.
6. LED voltage bin.
Shall I go on? If you use a driver or other current-control device, it's characteristics may override the above factors for some or all of the battery life.
1. Battery quality
2. Battery state of charge
3. Battery temperature.
4. LED temperature.
5. Wire size and length.
6. LED voltage bin.
Shall I go on? If you use a driver or other current-control device, it's characteristics may override the above factors for some or all of the battery life.
Steve K
Flashlight Enthusiast
the answer depends on what electrical components you wire in between the battery and the LED.
DIWdiver
Flashlight Enthusiast
If you use a good battery, heavy wires, and good connections, then yes, you need a resistor or driver.
