Perhaps Capacity is Not King
I don't want to derail the current "charging AGM batteries" thread more than I already have. During the course of that thread I was shopping for AGM batteries, trying to determine which ones could ...
Forum Discussion
IMO weigh the battery and if it does not weigh for 130AH return it.
A 12v true deep cycle 150AH T-1275 weighs 82 lbs. It is as high as a 6v but longer.
On the capacity high-jacker question :) My thought was that while capmping doing 50-90s it didn't matter if one type of battery drew down the other because none was getting fully charged anyway, only to 90%.
But Mex and others were talking about some kind of evil "interactions" even when they were being used, not just when left together unused. Then there was a disagreement on that, where smk thinks it is still ok if they are on a float charge but Mex says no, they still have those evil interactions.
I don't leave them together on float or with no float; I separate them at home for their 100% episodes and leave them separated.
Meanwhile I am sitting here with all the inverters now on the two 12s and the furnace etc on the four 6s. Morning voltages second day (6s got a 50-90 yesterday, 12s nothing), are 12s- 12.4 and 6s- 12.1 so I will have to do another 50-90 on the 6s today. (Temp is 33F)
One of the ideas was that with no inverters to alarm off, the 6s could then be taken down to 30% with no harm, which would give an extra day before needing a recharge. That was for when getting near time to go home, you could skip a camping recharge and catch up at home in slow time.
I can try that by skipping the 6s tomorrow and just doing the 12s which will need it by then to get through the next day. Going home Sunday (today Friday)
I am wondering about how it would all go with the six batteries done up as a bank of three pairs of 12s like I had it in the first place before Mex started making trouble :)
A 12v true deep cycle 150AH T-1275 weighs 82 lbs. It is as high as a 6v but longer.
On the capacity high-jacker question :) My thought was that while capmping doing 50-90s it didn't matter if one type of battery drew down the other because none was getting fully charged anyway, only to 90%.
But Mex and others were talking about some kind of evil "interactions" even when they were being used, not just when left together unused. Then there was a disagreement on that, where smk thinks it is still ok if they are on a float charge but Mex says no, they still have those evil interactions.
I don't leave them together on float or with no float; I separate them at home for their 100% episodes and leave them separated.
Meanwhile I am sitting here with all the inverters now on the two 12s and the furnace etc on the four 6s. Morning voltages second day (6s got a 50-90 yesterday, 12s nothing), are 12s- 12.4 and 6s- 12.1 so I will have to do another 50-90 on the 6s today. (Temp is 33F)
One of the ideas was that with no inverters to alarm off, the 6s could then be taken down to 30% with no harm, which would give an extra day before needing a recharge. That was for when getting near time to go home, you could skip a camping recharge and catch up at home in slow time.
I can try that by skipping the 6s tomorrow and just doing the 12s which will need it by then to get through the next day. Going home Sunday (today Friday)
I am wondering about how it would all go with the six batteries done up as a bank of three pairs of 12s like I had it in the first place before Mex started making trouble :)
