Originally posted by Sunking
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Originally posted by AncelB View PostChallenge therein is enough sunlight regularly to do the job, else sulphation will set in.Comment
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Originally posted by max2k View PostIt sounds like we should not ever bother with SLI batteries for the solar or off the grid purposes in general as they would really need to get significant percentage of the charge back for the system to make economical sense so SLIs with their starting abilities at the expense of deep cycle look pretty useless for these purposes.
1. SLI aka Cranking or Engine starting battery are designed to deliver very high quick burst of current, then be recharged very quickly. SLI batteries in the USA use lead-calcium alloy with many thin plates to increase surface area, thus lowering internal resistance so they can deliver those very high currents required. However lead-calcium and thin plates do not lend them selves for cycling and if pressed into cycle service will only provide as few as 50 up to 300 cycles. One note here another battery that uses Lead Calcium alloy is Stationary batteries used in telecom. Again very high currents, but not many cycles.
2. Deep Cycle batteries can be either Lead-Antimony, Pure Lead Round Cells, Lead-Tin. US market is dominated by Lead Antimony. Deep Cycle batteries have much thicker and heavier plates, thus can supply up to a 1000 cycles. Some claim more. The one disadvantage of a true deep cycle is the internal resistance is higher than a design with more and thinner plates so they are limited in how much current they can deliver without excessive voltage sag. Typical limit is roughly C/8 to C/6 with some as high as C/4.
3. Hybrid which come with many marketing names like Golf Cart, Fork Lift, RV, Marine Deep Cycle, Trolling, Wheel Chair, and the list goes on. These batteries use the same alloys as Deep Cycle but the plates are thinner and more of them again to increase surface area this lowing internal resistance. They try to be both SLI and Deep Cycle. The trade-off is cycle life. More cycles than SLI, but less than Deep Cycle.
So SLI batteries really have no place in cycle applications, while Deep Cycle and Hybrid do have a place.MSEE, PEComment
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Originally posted by AncelBI imagine that most folks on the forum do a good job of maintaining thier storage assets as they understand the technology.
MSEE, PEComment
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Originally posted by Sunking View Post
That is funny. Most that come here are clueless.Comment
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Originally posted by AncelBMaybe, but the project is not really experimental. I have the proof of concept data and the statistics in actual service, even thermal profiles. The commercial grade units tracks every battery and reports on success rates via IoT. This project provides the key basis for accomplishing regeneration of ill treated batteries. The automation is up to the builder based on their needs or interests.
You should start your own thread, for your DIY project, instead of hijacking this thread....Comment
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Originally posted by AncelBguys...i am not adevertising or selling anything. It is an open source project...please read b4 accusing.Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-ListerComment
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While I did design primarily for vehicles, the design is good to 250 Ah (6/12V)batteries including deepcycle like Trojan T105s. Which is why I mentioned it.
I'll start a separate thread if there's any more interest.Last edited by AncelB; 07-23-2017, 01:13 AM.Comment
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