It's that dreaded time to replace my 4 house batteries. I shouldn't complain, I got 9 years out of them. The "but" is, replacements are limited. I've got Deka's in there, 24" inches long. The battery places are not stocking 8hhg-25's but do stock 8HHG-21's.. 6-8 week lead on the 25's, anybody...