I need help with two questions:
1 - The charging setting if I’m using FIAMM 12FLX500 batteries (5 strings each with 4 batteries for the 48VDC)?
2 - How to set the load assist current and time to run during the night and then when to recharge during the day?
What equipment are you trying to configure.
Your post is lacking detail which makes it difficult to help.
Hello Nick,
I recently purchased the MultiPlus-II, 5kVA, 48VDC and the Cerbo GX to communication via WIFI to simply back up my home and at the same time provide power assist.
I’ve been using the VECSetup_A to download and then upload files along with VictronConnect and my phone app.
I need help with a few questions and the google searches and videos all reference settings that are not available:
Old school.
I would get battery balancers to keep that lot in check.
So that’s a 660ah bank.
Their specs state:
Float Voltage: 2.26 V/cell at 77°F - 13.5V - 54V
Absorption Voltage: 2.35 V/cell - 14.1V - 56.4V
Float Voltage Compensation with Temperature: -1.39 mV/cell/°F - my maths says that -60mV/C for the string of 4. ( I would check that)
The default victron AGM profile is usually OK for most batteries, but a tad high for the listed battery specs so probably worth adjusting, but as a lithium dweller I would take the advice of some of the guys here who still love lead, they will give you a better steer, but this hopefully helps point you in the right direction.
And you want to limit the charge current, to around a 10th of the C rating iirc.
(this is why I stick to Lithium 
)
I get hundreds of these VRLA batteries every few months, that are only 3 years old, from my large data center applications so that’s why I’m using them. I found all the same battery specs but they also stated that the multiple absorption times would dry out the electrolyte and destroy VRLA battery which was not mentioned when I purchased the Victron system. I can set the absorption charge to match the float voltage but I’m not sure how that will affect the batteries.
