Classic not reporting correct SOC

[asdex]

Hi, I haven't been able to get my classic to report my battery SOC correctly. When it says 100% the batteries can be 1200. I have the up to 1260 now but I wanted to use the Classics SOC to switch a relay when the batteries are fully charged. I have tried adjusting the efficiency but that hasn't helped.
Any ideas?
Thanks,

[dgd]

The problem is the SOC % reported by the Classic/wbjr combo is at best only a reasonable estimate of the battery actual state of charge.  There are just too many variables involved to depend on a particular SOC reading
I always find it interesting that the SOC jumps to 100% on moving from Absorb to Float despite the last Absorb SOC at less than 95%. Worse if there are several days without reaching Absorb and SOC is in the 85 to 90 range.
Dgd

[ClassicCrazy]

Hi, I haven't been able to get my classic to report my battery SOC correctly. When it says 100% the batteries can be 1200. I have the up to 1260 now but I wanted to use the Classics SOC to switch a relay when the batteries are fully charged. I have tried adjusting the efficiency but that hasn't helped.
Any ideas?
Thanks,

You may need to tweak the capacity as well as the efficiency . Are you using Whizbang and ending amps to terminate the absorb cycle or just using time ? If your batteries are going to float ( and that makes them go to 100% SOC)  early before the batteries are fully charged according to your hydrometer then you either need to lower the ending amps or set a longer Absorb time ( or make sure the absorb time is not set too short if using ending amps because which ever comes first is what terminates Absorb. )

Larry

[boB]

Hi, I haven't been able to get my classic to report my battery SOC correctly. When it says 100% the batteries can be 1200. I have the up to 1260 now but I wanted to use the Classics SOC to switch a relay when the batteries are fully charged. I have tried adjusting the efficiency but that hasn't helped.
Any ideas?
Thanks,

What is the 1200 and 1260 ?  Is this a specific gravity reading ?

boB

[asdex]

Yes that's correct. The specific gravity.
I was charging the batteries according to the SOC value on the classis but found it to be well out therefore seriously undercharging the bank.