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(Part 1 of 3) This is a report on the design, construction, and to a limited extent operation of the Seplos 6.9 kWh LiFePO4 Mason DIY kit. Why limited? There is no exhaustive testing, long-term information, information on data connection with an inverter, and I'm not equipped to make...

I noticed today that the Seplos 6.9 kWh Mason DIY kit price has increased to $2,200 (USD). A week or two ago it was $1,600. 37.5% increase! Is this an outlier, or the canary in the coal mine, camel's nose under the tent, coming tsunami, etc.? In the lead acid area, several of the Walmart car...

I suppose a short DIN rail on standoffs could work. Best would be if there's already a commercial solution out there somewhere, like a DIN rail to panel mount adapter.

I'm looking for feedback from anybody who has a lot of experience with receiving shipments from China to the USA. My shipment is in the 400 lb. ballpark and I have a fedex tracking number from the selling company. Fedex tracking says the shipment was delivered today more than 1,000 miles away...

One of the advantages I imagined with LiFePO4 batteries was that if one cell died it could be replaced instead of pitching the whole battery out. I see that pretty much all of the preassembled batteries use welded busbars, which I figure pretty much eliminated the possibility of replacing a...

This is more of an economic or philosophical question than technical. I'm looking at one particular company but don't think it's necessary to be specific other to say it's a USA company. The situation is pre-ordering some batteries for say $5,000, with the projected delivery date 2 months out...