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Thanks for the info! The new SBMS40 looks nice, but only supports one input. The SBMS120 looks nice as well but a bit more expensive. I'll have to think about what I want to do.

IOTA is the brand of your charger? I guess it wouldn't need an on/off switch since it's going into one of your PV inputs. Since my inverter/charger is wired directly to the battery (hooked up via an external shunt to the BMS), it would need to be controlled by the SBMS, but my problem is the...

Hi, I'm curious to know how you guys that have installed this SBMS have been working? I have 400ah of lifepo4 (16 total in 4s4p) cells but with an outdated and feature poor BMS (mini BMS v3). I have three charging sources: 300W of solar (looking to upgrade to 540W) Alternator charging through...