Battery n mppt

[AranM0n3y88]

hey guys I just got me 4new 6v Trojan 225ah I been charging my battery for 3days without using them.. My ? Is why does my Morningstar Tristar shows me a yellow n red light which mean 0-35% soc but when I check my battery volt it shows me 12.34volt 83% have use so far ..why does it show me the lights when my battery's is in 83% charge ? Is they sum thing wrong with my mppt or battery ?

[Wy_White_Wolf]

Are you getting that voltage reading while the charger is still on? How long after terminating charging did you take the reading?

WWW

[jflorey2]

Is they sum thing wrong with my mppt or battery ?

Probably not. Voltage based gas gauging schemes are hideously inaccurate if done poorly.

[Sunking]

You cannot use voltage to determine SOC. You have already been told that. You need a hydrometer.There is a reason they are called IDIOT LIGHTS.

[AranM0n3y88]

I check it at 10p.m when they isn't no sun light

[inetdog]

I check it at 10p.m when they isn't no sun light

And also no loads at all for at least 4 hours?
Even when in a stable rested state, the voltage is not as good an indicator of battery SOC as the temperature corrected hydrometer reading.
The cost of a hydrometer (could be under $10US for some decent ones)------- is small compared to the value of saving the life of your battery bank. +

[AranM0n3y88]

Thanks inetdog I will keep that in mind