Battery Values

Discussion about Z-Uno product. Visit http://z-uno.z-wave.me for more details.
Post Reply
DerLexus
Posts: 22
Joined: 03 Sep 2017 14:38

Battery Values

Post by DerLexus » 31 Jan 2019 11:50

Hi!

i use a CR123a battery to power an Z-Uno with Z_UNO_SLEEPINGMODE of SLEEPING. The battery value that is reported by the Z-Uno seems to be way to low. I changed the battery to a totaly new one and the reported value is 68%. The battery voltage is 2.98v (measured with a voltmeter).

I would expect a value of >90%...

Can someone explain what happen here.

I know that i can change the min max values, but maybe there is an explanation for this or a bug?

User avatar
PoltoS
Posts: 4954
Joined: 26 Jan 2011 19:36

Re: Battery Values

Post by PoltoS » 02 Feb 2019 15:30

This is because you need to measure it under the load.
By default we assume 3 V as normal and 2.65 as 0%


What you see is (3−2,78)÷(3−2,65)*100. Looks under load it gives 2.78.

You can apply your own handler.

See http://z-uno.z-wave.me/Reference/ZUNO_S ... RY_LEVELS/

Post Reply