I was thinking about a sealed series cell. I've seen numerous designs for one point cell refill, that all came to the same flaw. Current leakage between cells via current traveling up the tubing into a reservoir ,back down the fill tubing to contact another cell .
[quote="Bob Boyce"]Instead of thinking about it as electricity follows the path of least resistance, which has some merit, you have to think of it as a resistor network.Part of the current will flow along the path of least resistance, and the rest will flow along any other paths that exist, no matter how high the resistance.
These magnet devices could have the potential of blocking these leakage currents in these refill device's tubing. This link shows some examples. http://www.trentatron.com/landing.htm?g ... gQodl27fVA