solar disconnect switch
I want to install a switch to disconnect my 155w panel from the controller. The regular battery disconnects are so big. Any harm using a small toggle? Or maybe there are smaller disconnects? I looked ...
Forum Discussion
wopachop wrote:
On day 3 and 4 it got up to 14.7 measured at the battery post. Isn't that too high and a sign that charge profile #2 isn't working right?
No. First the nominal AGM Vabs of 14.4 might be affected by it being temp adjusted, if it is lower than 77F out. Second, who says a few minutes at 14.7 is bad for your brand of AGMs? Probably doing them good!
What is not working right is the time at 14.x. You need nearly all day in daylight where it holds at that voltage, and it should be at the Vabs your batteries are specified for.
You need to know that Vabs spec first, before getting any charging equipment, so they will match.
You seem to be way too worried about too much time at 14.x, instead of what the battery spec says to do ?
It is clear that your AGMs died from under charging. Not enough time at Vabs mainly. No observation of when reaching 0.5a/100AH before dropping to Float voltage too.
With your new 6v Wets you can take it easier and just use your hydrometer to see if you are on track. If not, change your ways accordingly. Easy peasy. AGMs are not so easy. Eg, with Wets , you don't need the ammeter; you have the hydrometer.
