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I'm getting ready to roll my first Lifepo4 battery with a Morningstar PS-MPPT-40M charge controller, Chargery BMS, and Samlex PST-3000W 24V inverter. I pleasantly found out I can use PIN 3 of the Samlex to switch the inverter on with 4.8milliamps at 24V! Yippee! I can use the low current relay...

I would like to remotely switch my Samlex PST-3000W inverter using some sort of "latching relay" or "bistable" that draws zero current when not switching. I have a Morningstar RD-1 relay driver that I could pulse voltage to toggle the state of the relay. I'm trying to avoid throwing away about...

I'm new to lithium batteries and am considering rolling my own off grid whole home battery bank consisting of 40ea CALB CA400 cells at 3.2VDC at 400Ah. CALB direct quoted $14,450 for 40ea batteries, 40A charger, 2ea 24VDC BMS, 1ea 12VDC BMS delivered to my door from China. The cost per Total...