Scott is using the BC110 Battery which is a 28 amp hour battery. I was
going to use that one because it is the closest in shape to the
standard Gill.

I talked to one of the engineers at B&C and he recommended the BC100.
He said that even though it was a 25 amp hour battery rather than 28
amp hours, it would put out more initial current which is what he said
that I needed with my SkyTec starter.

Remember to carefully check the dimensions and polarity of the posts before ordering (pdf file for each battery). 

 

 

The BC110 weighs 1 pound less than the 100, the charging voltage range is slightly different and the size is different although similar if one is laid on its side. The BC110 specs reference float voltages for storage which match the Battery Tender that I use.