Positive Plate Loss Question
Mex says (ISTR) that if your battery gets charged up to baseline SG and you keep charging it at 14something, you will suffer positive plate loss. (You also lose "water" but that is no big deal--you ju...
Forum Discussion
I will find something else to worry about then.
Shallow daily cycles down to the mid-80s% and getting to 14.8 then staying at 14.4 seem to be perfect for my four 6s; no need for equalizing/overcharge to reach baseline SG.
Big surprise for me. Last year the controller I used then topped at 14.6, did two hours there, then dropped to 13.8. With that routine, I did need to overcharge to reach baseline SG.
Having the T-1275s banked with the four 6s on solar did lead to loss of water in the 6s while no water loss in the T-1275s. The T-1275s did need to be separately overcharged too. Obviously this was a case where the mix was not good for the 6s long term.
I have the T-1275s back home on a Float till needed again for camping without solar just doing 50-90s. Mixing them with the 6s doing that worked out great and for under a week no time for problems to arise.
Now the four 6s reach 14.8 earlier and spend more time at 14.4 instead of 14.8.
Not the same thing as one forum member did reducing to four from six batts, where in his case the solar was unable to get six all the way up daily but could do four. Still, it does show you can find the right balance of solar wattage vs battery bank size by not just getting more solar, but also by having a smaller bank. (Leaving enough in hand for cloudy days.--summer means you can expect the sun to come back sooner so you don't need such a big reserve though)
Shallow daily cycles down to the mid-80s% and getting to 14.8 then staying at 14.4 seem to be perfect for my four 6s; no need for equalizing/overcharge to reach baseline SG.
Big surprise for me. Last year the controller I used then topped at 14.6, did two hours there, then dropped to 13.8. With that routine, I did need to overcharge to reach baseline SG.
Having the T-1275s banked with the four 6s on solar did lead to loss of water in the 6s while no water loss in the T-1275s. The T-1275s did need to be separately overcharged too. Obviously this was a case where the mix was not good for the 6s long term.
I have the T-1275s back home on a Float till needed again for camping without solar just doing 50-90s. Mixing them with the 6s doing that worked out great and for under a week no time for problems to arise.
Now the four 6s reach 14.8 earlier and spend more time at 14.4 instead of 14.8.
Not the same thing as one forum member did reducing to four from six batts, where in his case the solar was unable to get six all the way up daily but could do four. Still, it does show you can find the right balance of solar wattage vs battery bank size by not just getting more solar, but also by having a smaller bank. (Leaving enough in hand for cloudy days.--summer means you can expect the sun to come back sooner so you don't need such a big reserve though)
