SiO2 batteries - opinions?

pnichols wrote:

phemens wrote:
Confusingly, the battery is called a 240 but actually provides 210 ah. I will be wiring each battery to a junction post as recommended in that link, thanks!

Note the most important thing is: Each battery must be wired to the junction post using the SAME LENGTH of wire. :)

The Trimetric shunt makes it impossible to have the pos and neg sides equal, but that is not the requirement. As noted, the battery to shunt (neg side) links need to be equal, and the pos links need to be equal to their junction.

It doesn't matter if the pos and neg sides are unequal because it is a circuit.

Also the shunt might not take all three links due to its short bolt, so you might need to run a fat wire from shunt to neg junction and then have the three neg links.

Note that the outer end of the shunt also has a short bolt so you could need a neg buss on that side to take all the load/charging wires. For ampacity gauge of the wires, the single fat wire from the shunt has to take the total amps of all the individual input wires to the shunt. Then in turn, the three links have to take that total amongst themselves, but you can't be sure each will take exactly 1/3, so over-do their gauges a bit, but still make them the same as much as possible.

Same with the pos side except no shunt, but instead now you have fuses. No fuses on the three pos links to junction, but then you will have individual size fuses per each input pos wire gauge. You could have bolt length issues there too for stacking lug terminals, which means another buss and wire (fused) from buss to junction.

Should be fun to organize all that! :)