wopachop wrote:
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 around amazon and e bay. Seems like im seeing the same 3 products under different names. 
Why?
Trailer is on shore power mostly. No need to float fully charged batteries every single day. I think thats what killed my agm batteries in under 2 years.
A proper float charge helps promote long battery life....not shorten it.  But if you still want a switch, I'd suggest a nice quality Blue Sea product such as this:  
Blue Sea 187 series