Not sure that we really disagree here...noting that I think that Enersys does make good batteries (and, my Sears is close by and it has a good warranty), which is a major reason that I went with the Platinum. I will also add that the Sears charger that I referenced is model No. 28.71227...which has some issues of it's own..and, I would NOT recommend using it in a maintenance mode.
As far as "not see you mention Odyssey or Enersys "
From this thread
http://forums.viperclub.org/threads/631232-Optima-Batteries?highlight=enersys
my post reads:
"Hi, Brent. While awaiting the answer from Mark, I would say that we are very happy with the Sears Die-Hard Platinum (series 34) in our 03. It is also an AGM design with a great projected service life and good warranty. It's actually made by EnerSys...who also makes the Odyssey batteries.
It's around 52 lbs, and retails for about $190.00."
And, from this old thread
http://forums.viperclub.org/threads/638828-Battery-Question?highlight=enersys my post reads:
"We ALL have our own ideas, viewpoints, and preferences.
Specific to our Gen III and IV Vipers, I promptly switch out the OEM battery and replace it with Group 34 Sears Die-Hard Platinum battery...as it is readily available, excellent performance, won't leak, has a long estimated service life backed by an excellent warranty. Importantly (to me) is the fact that this battery is made by EnerSys...makers of the Odyssey battery line.
I personally use Battery Tender Plus units...as they have performed well for us on Vipers for many years. Ctek is an excellent, higher-end unit that is very popular.
There will be many, many more opinions offered !!"