Mixing Batteries on Float-- Mex Test Update 2
UPDATE 1 on 23 Dec post UPDATE 2 on 25 Dec post ---------- Mex is driving me crazy! He said do not mix my used 12s (Scrubber batteries, he calls them--humph! They are respectable golf car batte...
Forum Discussion
I believe starting the test immediately after conducting a "Top Charge" will offer a dependable base for comparisons. Putting a one to two ampere charge across the terminals and waiting until the voltage reaches 15.00 then terminating, is the way I used to prepare a flooded battery for a capacity test.
The reason for confounding information between acid density and electrical performance is that plates that shed or warp their active material have little effect on acid density and less than expected derogatory effect on square wave resistance testing. A 20 hr capacity test is most relevant, along with a SG dip, then load testing with a carbon pile.
It would be interesting for several readers to conduct a 200 amperes for 15 seconds load test on a pair of their GC-220 golf car batteries then post the results on the forum. With this baseline, it would be difficult to get fooled whether a battery is good or not. Memory fades here, but I remember something about 9.9 volts.
The reason for confounding information between acid density and electrical performance is that plates that shed or warp their active material have little effect on acid density and less than expected derogatory effect on square wave resistance testing. A 20 hr capacity test is most relevant, along with a SG dip, then load testing with a carbon pile.
It would be interesting for several readers to conduct a 200 amperes for 15 seconds load test on a pair of their GC-220 golf car batteries then post the results on the forum. With this baseline, it would be difficult to get fooled whether a battery is good or not. Memory fades here, but I remember something about 9.9 volts.
