Lithium Battery Charge Level indicator circuit

[@arthurlothammerfilho4560]

What formula do you use to calculate diodes and resistors in 1.5V batteries, for example? How to calculate?

[@TECHIDEASCENTER]

The charge level of 1.5V batteries cannot be calculated with LEDs that require 3V power.

[@kennmossman8701]

ITS N X 0.65 PLUS THE VF OF THE LEDS WHERE N IS THE NUmBER OF DIODES IT IS RATHER CRUDE WITH THE LOWEST VOLTAG OE 1.8v ASSUMING YOU USED RED LEDS THERE ARE BETTER CIRCUITS BUT DON'T EXPECT TO SEE THat HERE

[@kennmossman8701]

better to use a d'arsonval meter

[@kennmossman8701]

yet another problem with this is the current usage - a bit dumb for use on a battery unless it has high AH

[@kennmossman8701]

better to use a d'arsonval meter

[@玲煉蒼]

期待用 (Charging cable + type-c)示範，拍攝更多的影片。 Looking forward to using (Charging cable + type-c) demonstration and shooting more videos. Usb 5V + TYPE_C + LED

[@kennmossman8701]

what?????

[@kennmossman8701]

MY GOD DO NOT CLIP OFF THE LEADS UNTIL ALL THE SOLDERING IS DONE SEEMS YOU KNOW VERY LITTLE

[@kennmossman8701]

THIS IS JUST A VAGUE INDICTOR AND HARDLY IS WIRTH THE TIME

[@kennmossman8701]

its vague since it depends on the vf of the LEDs and diodes which vary and vary by current

[@kennmossman8701]

WHAT IS THAT TAP TAP SOLDERING.........MY GOD LEARN TO SOLDER

[@TECHIDEASCENTER]

🤣

[@kennmossman8701]

this rather poor circuit has been done a thousand times before you offered no insight./ advice, no explanation weak EFFORT the voltage points are a joke since it depends on the Vf which varies.....you ought to measure and match Vf first