LM3914 overstating the obvious

[Kool Kamper]

Hi all , Have just built a Voltage LED display, which works just right in our Campervan except that we have a low bleed current always showing in the Lowest voltage LED, Lowest voltage is 9.5V and Highest is 13.5V. we have two units one each for Vehicle & Camper batteries, both show the same problem... can anyone offer a solution or a reason.

 

[audioguru]

Hi Kool,
The cause is a small current for when two ICs are cascaded. Its details and the solution are in the datasheet. Add a 10k resistor across the LED. I built one with two LEDs in series so I used 22k.

 

[Kool Kamper]

Many thanks Audioguru,
just managed to upgrade the voltage display unit.
Success!!!!
Thanks for your time and post.
Regards. kool kamper