Has anyone heard of replacing all at once becouse of different amps. number1 530 n2 45 n 3-310 n 4-40. just had them checked. what do you think?
lenny

I'm not sure what the numbers mean. Are you talking about coach batteries or cranking batteries? Or both?

Are the numbers amp/hours?

In either case, it is best if a set that works together is replaced together, unless they are very young.

What kind of a tester was used? Was it a Midtronics conductance tester?

Were they fully charged before testing?

yes they were they had one bad cell and drew down the rest the amp hours were all over the place
lenny

If you use four coach batteries, what are they? 6 volt? 12 volt? L16? Golf Cart?

Do you really need four coach batteries? If you are not a heavy user, two could be sufficient. We were very happy with two and only went to four to cut down genset run time and to use an inverter for the microwave. A lot of this depends on your energy use. You could also buy two and see how you like it. If you want two more, buying two more that match within a month or two would not be a problem.

just like regular d cells change one change them all. I do use them evan at home but it is only money .All I plug into at home is a 110 vote 20 amp socket works for me .That is my man cave
lenny

no body helped me with the gauges on the barth at Hillsborough to big to get to the compartment with ease.lenny