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The 10 to 30% range is a bit wide or vague. I based my solution on a 20% solution in 80% water. In theory the mix listed could be a minimum of 20%...
Brad. I think in general we are reading to much into the venting of the battery. It is not some catastrophic event rather a gentle release of...
After drilling one hole and clamping the module pressurize the module to check the safety release valve. On the modules I had they were stuck and...
You can buy the copper connectors or Make your own out of flattened copper water pipe cut to length and drilled. Make sure it is clean before...
Roy did you refill with the syringe dry cells or cells that had already been whetted and drained? The reason I ask is because in my original post...
It looks like there was a poor connection at the interconnect copper bar for cell 17. Is there a small wire coming up to that terminal if so...
Which battery are you talking about. The 12 volt battery is the only one with acid in it, and even then it does not normally leak even if the...
The pressure in a module is not governed by it's free air space. With less air space the pressure will build more quickly, but will only reach the...
Sliding a plastic tube over the needle cut to the correct length, and taped to the non pointed end will stop the needle at the same point each...
I private message Bob before embarking on this project as it was his early posts that inspired my efforts, and why I acknowledged his support in...
Thanks Richard. Was this a gen1 or gen2 module. John The module pair resistance is more important than capacity. No matter where a low or high...
The internal resistance on those modules has risen and is why the voltage rises when being charged at 15 amps. It would be interesting to add say...
Roy I have been looking at how much to raise the angle of the module to add the extra fluid needed. It looks like raising the front of the module...
Tilting the module backwards slightly by raising the side that we fill from will allow a higher level of fluid to be obtained. Raising the level...
Roy from memory of seeing those picture before. The screws were used to connect to the cell interconnects for reading individual cell voltages as...
Did you come across "I will call it stuck valve syndrome" in your pressure test where the initial break pressure was higher than 80 psi? This...
Thanks for the warning on module venting. I think there are a number of likely reasons why this can happen, but also why I encourage the initial...
Thanks Roy that is just the sort of information we need. So 22 to 23ml would appear optimal. John
Back in the 50's I had some NiFe ex government cells. These were welded steel cases vitreous enameled with a center steel plug for topping up the...
There is another problem with only filling through one hole, and I am not trying to disparage the method only pointing out the possible problems....
