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    39 year old flooded batteries

    I thought some of you might find this interesting. Here are a few pictures from work. The big square batteries are 3900 amp hour @ an 8 hour rate. The round cells are 1680Ah. String C was manufactured 03/1982. The key to battey longevity seems to be: 1. Starting with quality cells. 2...
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    MC4 connecter / this could be an issue

    I just found this on my meter lead. I have no idea where it came from or how long its been there. I use this meter a lot. Could this be from inside an MC4 style connector?
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    Growatt 3000/24 issues

    I've had my Growatt running for about 2 months now. It's been a real trooper, until a week ago. I have it connected to a little over 2100 watts of panels and 400ah of AGM batteries with 2awg cable. It runs 2 refrigerators, deep freeze and the blower on one of my central air units. When...
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    Well Sh!t I just damaged my charge controller.

    I replaced the data cable on my old Tracer 40 amp MPPT charge controller and damaged the unit. I looked at the old and new cable wire configuration but I missed that the two center wires were transposed. I was experimenting with a bunch of old stuff I had laying around, but something chewed up...