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 I have 400ah of lifepo4 (16 total in 4s4p) cells but with an outdated and feature poor BMS (mini BMS v3).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 a Blue Sea ACR
Shore power through my Magnum MS2012 inverter/charger
I've seriously been looking into this but I've hit a snag with my inverter/charger. Magnum makes an adapter cable to allow you to turn off the inverter from a switch (which is how the SBMS would like to turn off external loads through a shunt see page 13
http://electrodacus.com/SBMS120/manual/SBMSmanual.pdf), but they don't have the ability to remotely turn off the charger. For those that have this setup with an external shunt/charger, how are you addressing this? Do you have a separate charger like a progressive dynamics? If so, does it support a switch to shut it off? I don't see any that support and on/off switch. I had thought about installing a relay inline on the positive side to trigger a switch, but it seems like an overly simple fix to a problem that magnum (or another charger) should support.
Also those that wire up to your alternator, how has that worked out? Dacian suggest a DC to DC converter like a LTC3780 to get a constant current. However that only supports 10 amps, which seems low. However you could always install a few in parallel, but again that complicates the wiring. Curious to see what others have done.
Thanks!