How to veryfy Neutral Temp , AMPh, BB efficiency

[sigp2101]

According to Manual, page 76 in troubleshooting guide, fourth row down, it states

*Verify the neutral temperature for the temp comp is set per the battery manufacturers specs (typically 25C)
*Verify the Amp Hours of the battery bank is set properly (Note batteries in a string do not add in amp hours, so if you have a single string of 8 golf cart batteries each having 220AH then you have 220AH of capacity)
*Verify the efficiency of the battery is set properly according to the battery manufacturer’s specs (typically 94%)

But no instructions on where to find these and how to set them properly. Where in the menu one would find these settings to check upon them and how to set them to correct values. Please advise me, I am still going through tweaking my Classic CC.

Thanks

[Vic]

Hi sigp..,

Regarding Setting up the WBjr,  where these values will apply;
The Reference Temperature for most Trojan RE batteries is 27 C,  25 C should be close enough ...  forget the resolution for this setting in the Classic ...  believe that it is set in one degree C steps.

Flooded battery Efficiency factor is nominally about 85%.   This is a good starting place.   You can fine-tune this setting by measuring battery SGs verses SOC display on the WB status page,  and change accordingly (believe that your batteries are Flooded).

On a new system,  the actual Ah Capacity of the battery will increase over the first 20 - 50 cycles,  typically.  So would suggest that you not get too wound-up over trying to get this number too close,  initially.

Also,  battery monitoring devices are usually a fairly rough approximation of Remaining Ah,  and SOC.   Measuring SGs is the Gold Standard of just what IS the true SOC of a battery.

FWIW,   Vic

[sigp2101]

Hi sigp..,

Regarding Setting up the WBjr,  where these values will apply;
The Reference Temperature for most Trojan RE batteries is 27 C,  25 C should be close enough ...  forget the resolution for this setting in the Classic ...  believe that it is set in one degree C steps.

Flooded battery Efficiency factor is nominally about 85%.   This is a good starting place.   You can fine-tune this setting by measuring battery SGs verses SOC display on the WB status page,  and change accordingly (believe that your batteries are Flooded).

On a new system,  the actual Ah Capacity of the battery will increase over the first 20 - 50 cycles,  typically.  So would suggest that you not get too wound-up over trying to get this number too close,  initially.

Also,  battery monitoring devices are usually a fairly rough approximation of Remaining Ah,  and SOC.   Measuring SGs is the Gold Standard of just what IS the true SOC of a battery.

FWIW,   Vic

Thanks Vic, your input is highly appreciated but my question was - where are those settings in Classic menu instructions are talking about?
I am having a hard time finding it.

thanks!

[Vic]

sigp..,

The MidNite Solar site has the WBjr Manual,  under the Classic area.

This should be the Link to the WBjr Manual,  choose the language of the manual that suits your needs:
http://www.midnitesolar.com/documents.php?productCat_ID=21&productCatName=Charge+Controllers+-+Classics&model=MNWBJR&product_ID=519&act=

That Links looks incomplete,  but on pages 4 and 5,  the Setup of these values is covered ...  from the Main Status screen on the Classic MNGP,  press Status three times for the first WBjr screen,  press upper Left Soft button ("MORE"),  then press the SETUP soft button,  believe that it is the upper right ...  and proceed with setting the necessary parameters for the WBjr operation with your battery characteristics.

The above should be nominally correct ..  been a while.

FWIW,   Vic

[sigp2101]

sigp..,

The MidNite Solar site has the WBjr Manual,  under the Classic area.

This should be the Link to the WBjr Manual,  choose the language of the manual that suits your needs:
http://www.midnitesolar.com/documents.php?productCat_ID=21&productCatName=Charge+Controllers+-+Classics&model=MNWBJR&product_ID=519&act=

That Links looks incomplete,  but on pages 4 and 5,  the Setup of these values is covered ...  from the Main Status screen on the Classic MNGP,  press Status three times for the first WBjr screen,  press upper Left Soft button ("MORE"),  then press the SETUP soft button,  believe that it is the upper right ...  and proceed with setting the necessary parameters for the WBjr operation with your battery characteristics.

The above should be nominally correct ..  been a while.

FWIW,   Vic

Thanks for that information Vic... couple more clouds being removed from my sky.

SIG...