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
EDIT--I see the 0.3C charging rate is at the 10hr rate! So that would be lower amps than if at the 20 hr rate for capacity (C is for "capacity) Hmmmm. More detective work needed! :)
It all appears to be a Dutch thing. That glider pilot link was Dutch AFAIK.
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Found something new here about fast charging comparison.
One guide linked before has a graph showing a 100AH being charged at 20 amps staying in Bulk till well into the 90s for SOC before amps taper, same as an Li's charging profile. BUT--
My test using constant 19 amps on my 100AH from Azimuth, had it start to taper at 87.5% SOC, so not like the graph, but still longer in Bulk than Wets or AGM, but not like an Li does.
I never got a proper answer why I can't use higher than 25% charging rate; just told it would be bad and don't do it.
So that makes this very interesting--- in the FAQ in the following link (new to me)
" Crystal Batteriesâ„¢ can be charged up to 3C (In Boost for short periods) without any impact on their cycle life. This means they can be charged 2-3 faster than other batteries. Standard charging requires 0.3C for GRGS, GRLS, GRFT range and 0.2C for GREV Range"
The other description in that glider pilot link also says 0.3C, which is a bit more than the 25% Azimuth uses for "max".
EDIT---the .3C is at the 10 hr rate!!!! so that is about 91AH for a 100AH at the 20 hr rate, ( based on their 6v being 200 at 10 and 220AH at 20) Which makes .3C 27 amps, not 30, so that explains the 25 amps being stated as the "max" (IMO :) )
We also do not have a definition for the "short periods" you can use higher charging rates. So can I use my 55 amp converter or not? No way to know from this kind of information. :(
https://greenrhino-energy.com/crystal-batteries/
It all appears to be a Dutch thing. That glider pilot link was Dutch AFAIK.
---------
Found something new here about fast charging comparison.
One guide linked before has a graph showing a 100AH being charged at 20 amps staying in Bulk till well into the 90s for SOC before amps taper, same as an Li's charging profile. BUT--
My test using constant 19 amps on my 100AH from Azimuth, had it start to taper at 87.5% SOC, so not like the graph, but still longer in Bulk than Wets or AGM, but not like an Li does.
I never got a proper answer why I can't use higher than 25% charging rate; just told it would be bad and don't do it.
So that makes this very interesting--- in the FAQ in the following link (new to me)
" Crystal Batteriesâ„¢ can be charged up to 3C (In Boost for short periods) without any impact on their cycle life. This means they can be charged 2-3 faster than other batteries. Standard charging requires 0.3C for GRGS, GRLS, GRFT range and 0.2C for GREV Range"
The other description in that glider pilot link also says 0.3C, which is a bit more than the 25% Azimuth uses for "max".
EDIT---the .3C is at the 10 hr rate!!!! so that is about 91AH for a 100AH at the 20 hr rate, ( based on their 6v being 200 at 10 and 220AH at 20) Which makes .3C 27 amps, not 30, so that explains the 25 amps being stated as the "max" (IMO :) )
We also do not have a definition for the "short periods" you can use higher charging rates. So can I use my 55 amp converter or not? No way to know from this kind of information. :(
https://greenrhino-energy.com/crystal-batteries/
