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What's wrong with my battery capacity indicator?


#1

hi,

i use this battery capacity indicator

i’ve a 12s setup 44.44v (2 batteries 6s 8000mah 35c 22.22v each one), they are almost full 99%
battery 1 - 4.19, 4.20, 4.20, 4.19, 4.20, 4.19
battery 2 - 4.19, 4.19, 4.19, 4.20, 4.20, 4.20

i use this power switch

this is a picture of my build, i only want to show the capacity indicator when i turn on the switch

but the battery capacity indicator only indicates 84%, why? any idea?

thank you


#2

It might be on the wrong mode. There is a button on the back. Hold this down as you power the board on and you should be able to change the mode.


#3

Also, your power switch might melt given it handles such low current.


#4

Yeah, wiring looks great. Definitely some configuration issues


#5

thank you for all your responses! :slight_smile:

@lox897 yesss!!! it works! when i turn on with the button indicator pressed i can choose an option from 0c to 15c, then to save the setting turn off and turn on again.


#6

Awesome. Set it according to what 12s is.


#7

Personally, I think it’s better to monitor voltage.
It doesn’t seem like percentage meters are accurate enough.
Also, you need a high voltage anti spark switch.
The switch you have won’t hold up.


#8

Any recommendation of volt meter?


#9

I think the meter you have can switch to volts.