white paper on SiO2 batteries

[pianotuna]

Hi,

Finally found one. It compares Lead Acid, Nickel Based, Lead Crystal and Lithium Based Batteries chemistries.

https://azimuthsolar.ca/wp-content/uploads/2020/08/study-of-comparison-of-characteristic.pdf

[StirCrazy]

noteven wrote:
I'm still thinkin' SiO2 is a worthy option in the Canadian weather neglected rv sector....

yup it is if you camp below -17ish or consistant daytime highs below 0 longer than the capacity of your battery. but cost wise isn't the reason. I just priced out SI02 batteries here and to get the same capacity (usable) it is slightly more with SI02 (maybe thats the special BC price) if I do the rool my own (which it looks like I am) then SI02 becomes over 2 to 3 times the price for the same usable AH.

I would also argue that if your willing to move your batteries into the living space (LFP have zero off gasing and can be mounted in any orentation) that you can camp at -40. but anything below -20C would require a heating pad to prewarm the batteries to -20 before starting the furnace, but once the furnace is going now issues.

Steve

[pianotuna]

noteven wrote:
I'm still thinkin' SiO2 is a worthy option in the Canadian weather neglected rv sector....

It is a better solution than LiFePo4, and cheaper unless you wish to "roll your own".

I have ordered one for my generator. The remote electric start has killed off two agm's so far--and the SiO2 replacement is actually cheaper.

[noteven]

I'm still thinkin' SiO2 is a worthy option in the Canadian weather neglected rv sector....

[StirCrazy]

if you take the Li batteries specs right out of this comparison, I wont call it a white paper because it uses sales littiture as references in some cases. but it is a good comparison of agm, lead acid and Lead crystal. to bad they used a 20 year old Li tech in the comparison but thats the way to make the other stuff look better I guess.

Steve

[PerryB67]

3 tons wrote:
PerryB67 said, “ but it helps to dispel the arguments against SiO2.”

Maybe it’s slipped my fuzzy mind, but personally I don’t recall any *substantive arguments against SiO2, in fact, if my needs were like PT’s (say, a non-heated battery box, e.g. sub-zero temps) I too would consider SiO2 as a highly competitive choice…In the end, I’m quite sure you’ll experience no regrets with what seems a sage choice 🙂

*initial cost, but offset by longevity…

3 tons

On another forum our choice was met by a few ridiculous arguments.

At least two insulting posts were removed by moderators and I received a couple of PM's, supporting my position, about the negative attitude shown. In the end I just left the Debbie Downers alone though.

From what I've seen so far the SiO2's were the correct choice for us.

Enjoy,

Perry

[3_tons]

PerryB67 said, “ but it helps to dispel the arguments against SiO2.”

Maybe it’s slipped my fuzzy mind, but personally I don’t recall any *substantive arguments against SiO2, in fact, if my needs were like PT’s (say, a non-heated battery box, e.g. sub-zero temps) I too would consider SiO2 as a highly competitive choice…In the end, I’m quite sure you’ll experience no regrets with what seems a sage choice 🙂

*initial cost, but offset by longevity…

3 tons

[PerryB67]

I received this and a couple of other papers last winter. This is an old paper, as are the others I found, and does not include LiFePO, but it helps to dispel the arguments against SiO2.

Our Soneil 260 ah SiO2's are still running perfectly. It's amazing how fast they charge, much, much faster than our AGM's. It's still too early for me to give a wholesale recommendation though.

Enjoy,

Perry

[3_tons]

Per BFL, “I have not been able to really use my two SiO2s in the camper since last December due to Covid”.

BFL, Interesting, but AFAIK there’s not been reported a single case of LiFePO4’s getting Covid!!

3 tons

[BFL13]

Not clear on how much they tested the SiO2 themselves or used reported data from somewhere else.

Interesting that they say to charge FLAs at least at 10% charging rate, but no more than about 25%. I have found that rv/marine 12s like low and slow under 10% as long as you keep doing that till they get to 16v. Otherwise it is a real chore trying to get them to full SG.

I have not been able to really use my two SiO2s in the camper since last December due to Covid, so they have just been floating except for a deep cycle test in July to make sure they were ok. They were.

I think I will move them to the MH to get a 6 batt bank for the winter and just go with a single 12 in the camper for the day-running it only does these days.

I agree with PT to wait till next year when you will have a chance to use them before spending the big bucks.

I see Azimuth still has 36 of the ones he got 50 of before Xmas, but he has jacked up the "sale" price some lately. Don't understand that! Shelf life is happening big time there! Would have thought the price would drop by now.

[marpel]

Ignoring the less than professional grammar (reminds me of an item manufactured in China with a manual translated into English by someone in China), it's a pretty interesting read.

[noteven]

Thanks pianotuna

[profdant139]

Thanks for locating that item and posting it!!