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jrnymn7's avatar
jrnymn7
Explorer
Aug 16, 2014

when should a powermax pm4b drop into float mode

Hey everyone... hope your summer has been as enjoyable as mine. (...loving the cooler than normal weather!!!) I recently installed a new pm4b 75amp charger and Trimetric meter. My batteries are 4 T...
BFL13's avatar
BFL13
Explorer II
Sep 25, 2014
It is hard to keep up, but AFAIK the "real" PMs (3 and 4) are to 14.4 while Randy's 4Bs are special by going to 14.6. However lately the "real" PMBCs have been upped to 14.8 (except the adjustables, which don't have staged voltages. In this case the "real" ones go to 16.5 but Randy's go to 15.5)

Ok so we need to find out what the reverse polarity fuses are on a 75. Hard to believe it is only two 30s.

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