Barry: Thanks i did not think about that and I have a load tester that would work.
Jim: My original thought/plan was to just replace all the batteries PS1 and PS2 with BCR's but after reading the advice on this thread I may hold on just a wholesale replacement program and phase the replacements over time following the suggestion here. Big cost with all the units I have and the other units I converted to PS2 back when MTH first came out with the upgrade kits.