very interesting.... can you export all your settings: Maintenance>read>export PDF and post so I can see what's different? you might take a lo...

following

so.... does xxx709 include a fix for setting a "correct" charge curve for open-loop (no comms) Lithium ? i.e. user defined end-of-charge and float vol...

ping. @eg4eric , any word on target date for release of an update to address the "no float" bug with the 12000xp open loop charging?

@mtjag exactly.... by setting vBulk to 56.4, or 57, or even 58.0 give the BMS 5-10 minutes to balance at low current, and then allows a drop to vFloat...

looks like update to ccaa-1c1212 fixes this for the 6000xp. see details and notes:/p>

I'm following up on the best available fix for the 6000xp open loop charge control.... which is to do a firmware update to version ccaa-1c1212 which i...

@mtjag you do NOT need or want any absorb time with Lithium batteries

@dannybeardsley , *most* LFP battery internal BMS will low-voltage alarm and protect themselves at 44 v. I would suggest you set your inverter LV cu...

sounds like a real load.... 6-7kw would definitely show a little corresponding voltage sag. The heater in the wallmount (280ah) battery is a few hundr...

@jxnhrpr if you are paralleling from existing..... I *think* the "master" settings are all copied over to the slave... but maybe not the underlying fi...

@jxnhrpr if you are bringing the inverter back to a shop to update.... why not hook up to AC-in ?  

unfortunately, firmware updates require wifiI am totally with you.... especially for off-grid inverters like the XP series. I do have a number of off-...