Another Lithium Ion batteries question
Could these batteries which are for ELectric vehicles be also used in an RV for deep cycle purposes? http://www.evwest.com/catalog/index.php?cPath=4&osCsid=naglhlcs4afl705sfec49hln20
Forum Discussion
Son is in solar and he recently attended a symposium where they believe that costs for lithium iron phosphate will drop by 50% within next two years. This would mean that a 10 kW-hour system would costs about $1500. This is 8 kW-hours of usable energy since 80% DOD should (according to tests run by Liberty Coaches for their $1.8 M and up Liberty Ladies) last 2000 to 3000 full cycles or about 10 years without degradation. I believe that they have three battery banks for a total of about 27 kW-hrs. This is a surcharge of $21K. I suppose if you can afford what is basically a $2M US rig, a 1% surcharge is pocket change. There is a thread on this forum where Liberty Lady coach owners discuss their use.
There are arguments going back and forth among LFP users about using battery management systems (BMS)or close monitoring of cells with Fluke meters. We opted for BMS since monitoring 16 cells is more than we care to do. AM-Solar is investigating LFP and is working with a fabricator for possible solar systems in the future.
Our system is 4 batteries of 4 cells in series (12 V nominal). These batteries are themselves in series to provide a 180 amp-hr 48 V nominal (720 amp-hr equivalent at 12 V nominal). This is approximately 9.6 kW-hours.
Folks that post about using LFP seem to universally like them. But there are a lot of naysayers (one Ontarian calls them Leadites). Undoubtedly a lot more folks will be utilizing this technology as (provided they do) prices drop.
Reed and Elaine
There are arguments going back and forth among LFP users about using battery management systems (BMS)or close monitoring of cells with Fluke meters. We opted for BMS since monitoring 16 cells is more than we care to do. AM-Solar is investigating LFP and is working with a fabricator for possible solar systems in the future.
Our system is 4 batteries of 4 cells in series (12 V nominal). These batteries are themselves in series to provide a 180 amp-hr 48 V nominal (720 amp-hr equivalent at 12 V nominal). This is approximately 9.6 kW-hours.
Folks that post about using LFP seem to universally like them. But there are a lot of naysayers (one Ontarian calls them Leadites). Undoubtedly a lot more folks will be utilizing this technology as (provided they do) prices drop.
Reed and Elaine
