SiO2 Battery -UPDATE 5 (Two Batts)
Updates 22 Oct, 8 Nov, 10 Nov (photo), 14 Nov, 15 Dec http://azimuthsolar.ca/product/12v-100ah-sio2-battery/ Mostly PT has given info on these over several posts in several threads, but I have l...
Forum Discussion
PT, mine didn't do that. See my test results way back in this thread. Amps started to taper at 87.5% SOC with a 19% charging rate. So charging was only "faster" between about 77-87%. from 50-77 is was the same time at constant 19 amps.
Some of the blurbs say you can charge at 3C for a limited period with no harm but the "standard" is 25% charging rate as the limit. I can't find any info on how long that 3C would be, so I don't dare try over the 25%
I suspect if you hit it with 3C, amps would taper quickly down to what the battery would accept, same as with any battery. Probably accepts more amps with a lower SOC same as other batteries too. No data seen on that.
You can go down to 20% SOC (or lower) though, so that lets you do a 20-90 instead of a 50-90 or a 50-80. That means your gen time is not being wasted by amps tapering while restoring 70% instead of just 40 or 30 % with no tapering.
--On price-- Azimuth is selling the 27 size 100AH at $628Can (also their US site says $449 US--which is lower at 75 cents conversion) but they have all sorts of sizes and prices.
http://www.azimuthsolar.ca/product-category/batteries/sio2/
I can get two 6s at Can Tire (they are East Penn GC15s 230 AH--an excellent 6) for just under $400 with tax, no shipping. That is nearly $300 less than the SiO2 with tax and shipping.
It could be worse --check out what Lis cost! (Way more)
Have to wait for the BC govt buy my vote money to show up or else win the Lotto I guess.
Some of the blurbs say you can charge at 3C for a limited period with no harm but the "standard" is 25% charging rate as the limit. I can't find any info on how long that 3C would be, so I don't dare try over the 25%
I suspect if you hit it with 3C, amps would taper quickly down to what the battery would accept, same as with any battery. Probably accepts more amps with a lower SOC same as other batteries too. No data seen on that.
You can go down to 20% SOC (or lower) though, so that lets you do a 20-90 instead of a 50-90 or a 50-80. That means your gen time is not being wasted by amps tapering while restoring 70% instead of just 40 or 30 % with no tapering.
--On price-- Azimuth is selling the 27 size 100AH at $628Can (also their US site says $449 US--which is lower at 75 cents conversion) but they have all sorts of sizes and prices.
http://www.azimuthsolar.ca/product-category/batteries/sio2/
I can get two 6s at Can Tire (they are East Penn GC15s 230 AH--an excellent 6) for just under $400 with tax, no shipping. That is nearly $300 less than the SiO2 with tax and shipping.
It could be worse --check out what Lis cost! (Way more)
Have to wait for the BC govt buy my vote money to show up or else win the Lotto I guess.
