US Battery "finishing" charge recommendation

landyacht318 wrote:
Yes, I'm hoping that 15.8v is required only seldomly, and that if I set my float at 15.3, perhaps the solar can get them there and hold them there for a little while this time of year,

15.8V daily is excessive IMO. I agree with smk. Try it once a week and see how that works out. Although I might even try bringing them up with a manual charger to 14.8V-14.9V to see how far up the SG gets. Better would be if you could hold 14.8V for a couple of hours once a week. If that gets in the ballpack then save the 15+V for once a month.