It looks like neither side on this issue is making any progress convincing the other very well.
The thing that leave me unconvinced are:
1. I have seen extremely few new batteries of any manufacturer fail during the warranty period.
2. I have NEVER seen a battery fail to the point where it had to be replaced during the warranty period.
3. I haven't heard of anyone who I would consider legitimate players in the industry sell either the renewed or rebuilt or desulphation battery service.
4. I haven't seen one reply to the original post that says that they've tried these services and they ahd great luck.
I feel the same way about these services as I do about Chinese no name pallet trucks. If an end user can't justify spendind $400 investment for a decent pallet truck that lasts a ridiculously long then I don't probably don't want them as a customer.
When I sell a truck to a light duty user and need to keep the price low then we sell them a known good used battery from a trusted supplier. Most of the time the customer will ask "how do you know if it is any good" and my reply is always the same. Use it if it lasts 1 hour then you will know it's junk. But it will last you 4 to 5 hours and you know it''s good.