I read this facebook post by Dan Bartmann this morning and felt it was worthy of wider attention:
Facebook always asks me ‘what’s on your mind’. Lotsa stuff that I don’t wanna share. But for now BATTERIES. I’ve read lots about them… how to take care of them, I understand the complicated charge controllers available now etc.
I got mine off ebay 10 years ago… new but sitting on a shelf for way too long before I got them. Today they are as good as the day I got them. They’ve been moody in between.
My only charge controller is a Morningstar Tristar TS60 running a dump load. The dump load was a 4000 Watt heater but since the flood two years ago only about 1000W of it comes on sometimes. Easy fix, not done yet. (just saying the charge control on my battery is mostly about boiling off water and there’s not much electronics involved)
I water the battery fairly quarterly and everytime I do I add way too much. (7 gallons last march)
My low voltage cutoff on the inverter is set to 32 V (because there’s times when I ask my battery for the very last drop)
So why is it that today and recently its cloudy, not windy… I’m sitting at 50V with a tube amp and the internet on and I just ran a well pump for a while and it’s all good? This is a Forklift battery I got off ebay 10 years ago. It probably needs another 7 gallons of water haven’t checked recently.
I think to a battery years are less than dog years (human x 7) I suppose I take care of myself as well as I do my battery maybe a little better. I should live to be 150.