I have never worked with LiPo batteries before, so this may be a typical beginnner battery question...
I am working on another "weekend project" to build a 4 x LED flashing strobe light to mount on a small quad-copter drone.
The light is to make it easier to see the drone at a distance, and to make its location visible at night.
(Beyound visual sight and night flying are both done with an FAA waiver.)
The LiPo battery I was thinking of using is a TinyCircuits product, available on DigiKey.
The "Data Sheet" says it is a Lithium Polymer cell, 3.7 V (Nominal), 500 mAh capacity.
There is no "C" rating provided.
It is about 1 inch x 1 inch x 0.2 inches in size.
How much current will a little LiPo cell source?
Will a "small", single cell LiPo provide enough current to power the LED Driver Chip and hence the 4 LEDs simultaneously?
My initial plan is to use a Tiny13 to drive an LED Driver chip to flash the 4 LEDs, on 100 mSec / Second, 1 Hz flash rate.
The LED Driver will drive the 4 LEDs in series, so they will all flash together.
The LEDs are White, 3W, 700 mA LEDs, that I am planning to drive at 150 mA, (derated).
(Thank you East Coast Jim for the LEDs!)
So although there is only one, 150 mA load, the LED Driver chip will have to boost the Vin, (LiPo ~ 3.7 V), up to ~ 12 V
to drive the string of LEDs.
I have the Tiny13's and the LEDs.
I haven't yet purchased the LED driver chip, the LiPo charger chip, or the LiPo battery itself.
This project is still in its early planning phase!
PCB quantity: Several, but for my use, not a commercial product.
I was hoping that those with some experience with small LiPos would say:
Not a problem, it ought to work fine
Are you crazy? Think of it more like a coin cell than a car battery!
Suggestions before I build a peperweight are always appreciated!
Edit: Image size