Oh, in the interest of keeping you fully informed it seems the existing protection circuit uses a DW01 protection IC along with an 8205A MOSFET - the circuit appears to be pretty much the reference design from what I can tell. Chris On Fri, Dec 2, 2016 at 2:52 AM, RussellMc wrote: > You may be able to reduce the voltage that the cutout sensor sees. > A series Schottky diode in the sense line - Vf is very low at low current= , > but even that may be too large a drop. > > A resistor divider would probably work. > > The main issue is probably whether the sense interface point is used > bidirectionally for some other function. > > > Russell > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .