Pulled all the seasonal batteries and put on a pallet. Went to trickle
charge them and found the little charger dead. After only thirty
years.

Its most similar to this:
http://www.harborfreight.com/2-6-amp...ger-45005.html

I have a large charger for starting. I need a unit for winter tending
and recharging if the lights are left on and a battery goes down. Now,
I've been mostly dissatisfied with horrible freight stuff.

Can anyone suggest an offer like above with a higher quality?

Karl