Nice idea. But If you do the easy way I-m really happy with two colors to determine if I’m above or under about 3,5-3,7V.
I recharge my batteries if they are under 3,7V
I recall passive voltage indicator methods, like different resistors for different color LEDs, were attempted… but they didn’t work very well or very consistently. So I went for a more active solution, using an attiny13 to measure voltage and explicitly turn LEDs on/off accordingly. The scale was red for the lowest voltage, then yellow, green, cyan, blue, and purple for totally full. Basically just a 6-step rainbow.
And the emitters were arranged in a circle so it would spin while going through the colors in order. Because bling.
Any battery suggestions?
Flat or Button top?
High Amp but how high?
Manufacturers recommended and ones to avoid?
Max dimensions?
Assume not protected…
Thanks,
Nite Shadow
Basically I could add the Maxim chip that I am planning for my LVP Tail boards as well to the aux board, but there is like no chance to make it fit on the normal d4 for size reasons
It is planned to do a color change on low voltage and shut down at LVP
Problem is I am waiting on the first to be delivered even if I ordered them 4 weeks ago
so first I have to test the tail boards successfully and the basic aux boards
It would help to know the optics and MCPCB specs on the D4S
on a Fireflies light the low battery and LVP shut off fits barely on 2 layer from space and trace routes
Efest batteries lie about the discharge capacity. I think Ijoy INR26650 is the best option in Nkon for D4S.
If you are from UK the Vape Club web store have Vapcell 26650 wich is one of the best batteries in this format.
You can look at the Mooch recommended batteries: