Quote: (Originally Posted by
dartagnansmith)
but I was planning on rotating cells our at predetermined time weather they needed it not.... say rotate the oldet cell out and a new one in every 90 days...
If you are saying that you will change 1 sensor each 90 days (~3 months), then it would an over-kill
IMHO.
Personally, I found that a sensor will last fairly reliably ~12 months unless they fail early on during the first few hours/days/weeks. Most will last up to 18 months, but not all.
The best method
for me is to buy some spare sensors about 3-6 months after changing, and keep them unopened. They do not deteriorate any worse than keeping extra unopened sorb around.
Having a cell tester is just a nice-to-have item but not completely necessary since you could check them u/w (PO2 and voltage), but you will also run the risk of cross-threading when keep taking them on/off... on top of wearing out the Molex connection as well.