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I was able to address these issues with minimal cost, but countless hours of effort researching and implementing my install. But outside of the BMS and the cells, I was able to make it all work without additional system modifications. I do need to spend a couple hundred on an upgrade to my...

I bought one of these: http://www.amazon.com/Neiko-20713A-Professional-Non-Contact-Measurement/dp/B000I5LDVC Works well the couple times Ive used it. Not well made for heavy use, but ok to calibrate the tachs.

Thanks, I see how it works!

That looks like a nice BMS. I wish they would publish the full specs and pricing online. All the functions sound spot on, however in my opinion 3.8V per cell is too high a value in general, especially if anything other than the Elcon contributes to the charge. And only then if you are...

Larry posted the link in another thread, but I have a write up on how to use Lithium Phosphate in marine house bank applications. If you look at our blog site at: http://marazuladventures.wordpress.com/ On the right side of the home page ind Bobs Articles is a link that takes you to short...

I need to retract one of my previous suggestions, using the CellLog in the previous post. They work for a marine house bank, but used as I originally suggested will load the cells unevenly in your 72V application. To shut off the charger, you are going to have to use bank voltage, or monitor...

LFP is a good match for this and "almost" but quite a drop in. Probably 23 or 24 100Ah cells. 1) work out the mechanics of installation and security. 2) bottom balance, that means prior to install fully discharge every cell to 2.5-2.6V. 3) charge until the highest cell reaches about 3.45V...

I've been a lurker here on and off for a few months, but never registered until yesterday. The article posted at the top of this thread is mine, and if anyone has any questions after reading it, I will be happy to answer if I can. First though, a couple of points. LiFePO4 banks are not as...