You equalizing your Surrette's on a schedule correct?
I'd shy away from the Powerwall for a few more years. Lot's of folks having problems with the BMS and longevity.
Nope, I am not a schedule kind of guy. Left that behind when I stopped working in a big-city office. So, equalizing is more a matter of, when I think of it, checking voltage and specific gravity of each of our 24 2-volt cells and equalize if necessary and to the extent necessary. Actually, if the system is scrupulously maintained, equalizing should never be required. It can be a necessary evil, but any overcharge, deliberate or otherwise, is inimical to battery life.
Yes, I will avoid Powerwall for now. Ditto for electric vehicles. All of that stuff is still developing and changes might come quickly. I don't want to rush to spend a lot of money for "new" technology only to see much cheaper and far superior technology all around me in just a few years. Maybe, by the time our existing battery bank is ready to be put out to pasture, after another 5-10 years, there will be something better to look at. Like my brother-in-law who, when he finished building his new house in 2004, bought a 52-inch tv. Big screens were just becoming popular. He paid about $5K. It had a big screen and did not have the depth of the old-style CRT picture tube, but probably about 16 inches deep and very heavy. Now you can buy a bigger screen, much flatter and lighter tv, with better picture and more features, for a fraction of $5K. Of course, I recognize, that you can be paralyzed into inaction if you always put things off thinking that if you wait longer, something cheaper and better will come along. I am guessing better electric cars and batteries will be around in another 100 years. Not sure I have that long to wait.
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