Battery Isolator - Parasitic Current
Does the typical battery isolator subject the vehicle battery to any parasitic current when they're in the "cut-out" mode (secondary battery disconnected)?
Forum Discussion
otrfun wrote:
Got a reply back from the seller of the $85 KeyLine Battery Isolator about its parasitic current. Their reply: "Yes, it is always monitoring and takes .02 Amps to do so." 20ma is more than acceptable for our application.
FWIW, there's a number of battery isolators on Amazon that look eerily similar to the KeyLine, have the same dimensions (2.6 x 2.6 x 2), voltage cut out/in (12.8v/13.3v) and amperage specs (140a) as the KeyLine, but cost significantly less (one was only $27).
add a toggle switch on the ground and you will get it down to 0. Be aware you won't get emergency start from this,
