I was reluctant to admit that I was putting on my slippers in the middle of the night to go measure battery voltage at 2:00 in the morning. I would have been even more ashamed to admit that I was recording voltages on a sheet of graph paper with a stub of pencil from a putt-putt golf course that closed twenty years ago... But now I don't feel so bad. You guys are over the top. LOL.
But seriously, I'm on the fence with my charger. Mine acts like Bob said his did. It will charge twenty hours (exactly) then the green light will come on, it doesn't matter if the batteries were run to 50% or I just took it for a ride around the yard. It will charge twenty hours period. I don't like the charger (mostly because it says made in China right on it), but am hesitant to get a third charger after having just plopped another $155 on this one. Does anyone have experience with the $600 charger they offered? Not that I would buy it just curious about how good it is.
I've noticed that the stock charger will go to 14.5-14.7 volts on each battery near the end of the charge and hold there. Some would call this equalizing the batteries AND this also dissolves sulfation on the plates. Something that normal battery chargers won't do. THAT is my single biggest reason for not using a different charger.
Here's a good example I forgot to mention. I brought home my new batteries, put them in, and forced myself to top them off (recommended by the dealer and everything else I've read) because they lose charge sitting on a shelf. (I really fought the childish urge to take it out and use it, and I made myself wait) After an hour I could smell the batteries gassing and shut off the charger myself. It was definitely trying to overcharge them.
Two things I am SURE ABOUT with the stock chargers:
1) I don't trust them.
2) If there was any one thing that killed production of the Zeon, I suspect that the charger (directly or indirectly) was the Achilles heel of the machine.
Are there different versions of the same charger? I suspect you're right Jake. My first charger would run as you might expect it to, it would charge based upon how depleted the batteries were. Sometimes two hours, six hours, sometimes sixteen. But it always correlated with the amount the battery was used.
I'm honestly not sure what to do about the whole charger issue, but until I decide I will keep my slippers close by.