Putting my new 16s Overkill BMS through its paces with 200Ah 48V battery. Been a rocky start so far, several issues. Victron Quattro kept tripping the "short circuit" protection (I guess initial start-up current was too much?), and slow/buggy Bluetooth.
But the weirdest thing is how my trusty old Victron SmartSolar has been behaving. After hooking up the LiFePo4 battery to the rest of the system, then turn on the charger, it just sits there at like 5W...instead of 3000+ that it should be pumping out. This has happens regardless of BMS, or even total lack thereof (not a BMS issue at all).
Thankfully I've stumbled upon an "initiation sequence" that kick-starts the Victron into action...but I cant figure out WHY it works.
I've included a diagram of my setup, stick with me here! Red line is path from battery, to lower cutoff switch, to "distribution block" (shared stud), which branches to 1)breakers, then SCC and 2) upper cutoff switch, to fuse, to inverter.
So after hooking up battery, I turn ON lower cutoff and breakers. Now charger has power. Turn ON breakers to panels, then charger just sits there doing nothing. *THEN* I turn the upper cutoff switch to ON (inverter still switched off) and now charger is happily charging away at full power like normal. THEN if I turn the inverter cutoff switch back off, charger doesn't care, keeps charging.
Whyyyyyy would it matter what the cutoff switch to the interter branch is doing???? The battery-to-charger circuit is complete without the inverter branch. Anyone experienced this with their Victron SCC? Never had any weirdness like this with my AGMs, so, maybe a lithium thing...?

But the weirdest thing is how my trusty old Victron SmartSolar has been behaving. After hooking up the LiFePo4 battery to the rest of the system, then turn on the charger, it just sits there at like 5W...instead of 3000+ that it should be pumping out. This has happens regardless of BMS, or even total lack thereof (not a BMS issue at all).
Thankfully I've stumbled upon an "initiation sequence" that kick-starts the Victron into action...but I cant figure out WHY it works.
I've included a diagram of my setup, stick with me here! Red line is path from battery, to lower cutoff switch, to "distribution block" (shared stud), which branches to 1)breakers, then SCC and 2) upper cutoff switch, to fuse, to inverter.
So after hooking up battery, I turn ON lower cutoff and breakers. Now charger has power. Turn ON breakers to panels, then charger just sits there doing nothing. *THEN* I turn the upper cutoff switch to ON (inverter still switched off) and now charger is happily charging away at full power like normal. THEN if I turn the inverter cutoff switch back off, charger doesn't care, keeps charging.
Whyyyyyy would it matter what the cutoff switch to the interter branch is doing???? The battery-to-charger circuit is complete without the inverter branch. Anyone experienced this with their Victron SCC? Never had any weirdness like this with my AGMs, so, maybe a lithium thing...?

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