SiO2 Battery -UPDATE 5 (Two Batts)

BFL13 wrote:
The latest is that camping in the MH with just two 6s last week was unsat. Needs four 6s. Had to run the gen every day and was losing. Usage was 80AH per day, and a 50-80 recharge by generator is 30% of 230AH, or 69AH.

Meanwhile the SiO2 is in the TC with the other two 6s that came from the MH. So The fix is to get another two 6s-- or for more money, another single SiO2 for the TC.

That would be 200AH of SiO2, so I could use the 55 amp converter ok, and the one TC solar set would be on them too. Right now it is on the two 6s, no solar for the SiO2. It would also free up that compartment in the TC for stuff.

I would rather get the second SiO2 than more 6s, but it is more money. In this case, whatever the price diff would be for the SiO2 vs the two 6s, so not the whole price of the SiO2 like last time. Not sure which way I will go. No hurry. The way the TC is now works great, but it would be just as good or better with two SiO2s and put the 6s back in the MH.

1) I would wonder how much of this has to do with the purported slower charge rate of Sio2 - could this be a factor?

2) Does mixing 6v’s with SiO2 cause a battery type recharge imbalance?

Just curious...

3 tons

noteven's 12volt Life for Dummies Rule No. 3: Canuck camper who has thin blanket and not enough amp hours for heating will get cold.

The latest is that camping in the MH with just two 6s last week was unsat. Needs four 6s. Had to run the gen every day and was losing. Usage was 80AH per day, and a 50-80 recharge by generator is 30% of 230AH, or 69AH.

Meanwhile the SiO2 is in the TC with the other two 6s that came from the MH. So The fix is to get another two 6s-- or for more money, another single SiO2 for the TC.

That would be 200AH of SiO2, so I could use the 55 amp converter ok, and the one TC solar set would be on them too. Right now it is on the two 6s, no solar for the SiO2. It would also free up that compartment in the TC for stuff.

I would rather get the second SiO2 than more 6s, but it is more money. In this case, whatever the price diff would be for the SiO2 vs the two 6s, so not the whole price of the SiO2 like last time. Not sure which way I will go. No hurry. The way the TC is now works great, but it would be just as good or better with two SiO2s and put the 6s back in the MH.

Last report was that with the wiring zoo before, I got about 30 minutes of microwave time at 65 amps (average) and the inverter alarmed at 11.1 volts with the SiO2 at 60% SOC

With the new set- up (see photo in earlier post) and over 3 days, this inverter was on a lot and the microwave was on for about 20 minutes total, plus minor 120v loads and the inverter on standby.

Battery showing 12.1 on return home, ran inverter and microwave for about 15 minutes till it alarmed at 11.0 v and quit at 10.5v , then voltage bounced back to 11.7, which is 20% SOC on the SiO2.

Very pleased with that! :) I still have room for improvement using fatter wires inverter-battery and to run the inverter's remote on/off switch to inside the camper to reduce wasted battery on standby.

So being able to run the "700w" MW with the single 100AH battery down to 20% is HUGE (IMO). Gives those Li guys some competition there! :)

Haven't SiO2 batteries been used for many moons in "serious" applications - medical equipment, remote communications etc. prior to RV use?

The link works for me.

PT, it has to be because you are stuck in Saskabush! :) Go West, Young Man!

I found it as a "hit" when Googling "C Rates battery" so maybe
your computer will let you do that?

EDIT--was a saying back when, "Even if they were in Heaven, some people would not be satisfied if they heard there was some place farther West!"

BFL13,

I still get

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Is the "charging volume" at 110% in the graph at the bottom of this link an indication of CEF?

http://www.siliconebatteries.ca/sp.html

C.E.F. Charge Efficiency Factor is a scientific performance ratio as given to storage batteries.

"X" ampere hours discharged

"X" ampere hours needed to replace above

It is a ratio with a decimal in this case a 1. used to express quantities 1.0 being 100%

The highest CEF batteries used to be gelled electrolyte followed by absorbed glass mat. The lower the second number the more efficient the battery.

This should be an easy question to answer using numbers and not rhetoric.