I agree those two are everywhere and if you enjoy coverage all over the map go that route. Batteries Plus is another company that has a crap load of locations to service warranties.
This is a great question as we are in Anchorage, AK and our home is down in Florida. While up here we had a warranty issue with our Trojan batteries and they have a dealer right here who took care of us on our AGM without a hitch.
There are Sears, Interstate and Batteries Plus around here as well.
__________________
Gene & Darla
When I'm not flying high, I like to be down low in my Tank. Newell Tank that is!