Hello, I have a victron system and I don’t know how to set the charging
parameters for the new batteries, the specifications of which are in the attachment. I would need to set the charging parameters for SmartSolar and SmartShunt for my system to work properly. The system is 48v, two blocks of 4 batteries each.
Siga Phaeton AGM 150-12.pdf (2,1 MB)
48v and agm in the battery drop-down list will do it.
Change battery preset from user defined to agm
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I did this, but I think the 65V charging voltage during equalization is too high, according to the battery data, so I just changed it to 59.2V.
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I suspect this chart is for resting voltage (no load) but under load the above chart can be misleading.
Use the presets as suggested and monitor and adjust as required.
I have x28 agm batteries and never had the need for equalization, if managed correctly (charging to 100% and not discharging to heavily) they will give you many years of service.
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Thank you. Can you write me the settings for the SmartShunt 500/50 for these batteries, because it seems to me that it does not show me the SOC correctly according to the battery voltage. So the battery voltage is too low according to the SOC, if this chart is not correct. I have an electric generator and I cannot correctly set the parameters for when it should start because of incorrect SOC.
Hi
The settings i use wont all be appropriate for your system.
When you first setup your system did you do a 9.10. Zero current calibration see below
https://www.victronenergy.com/media/pg/Lynx_Shunt_VE.Can_-_M8/en/battery-monitor-settings.html
Then what i would do is charge to 100% and synchronise the shunt to 100% and go from there.
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Yes, the calibration was done and the batteries were charged to 100%. I have had problems with SOC since the beginning and I have tried all possible settings, but there is no significant difference. My generator always starts differently. Sometimes too early, sometimes too late. I am afraid that I will destroy the batteries if they discharge too much. I only have solar cells on the property and when there is no electricity production from them, the generator starts as needed and charges the batteries. I did not have problems with this before because I had a Studer inverter that measured SOC itself and turned on the generator as needed. I have problems now that I have replaced the inverter because my SOC is measured by SmartShunt, which apparently is not reliable.
The SmartShunt is 100% reliable if everything is wired correctly, your parameters are correct (fi peukert and charge efficiency) . It works like a certified accountant, if the data is corrupt the best accountant cannot work.
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Thanks, so you’re advising me to leave the generator settings on the SOC from SmartShunt, even if at 60% SOC the battery voltage is below 48v?
Are you sure all batteries are connected and working ?
If they have seperate fuses, please check. And if you have, take a clamp meter and check all batteries have the same current when charging/discharging
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We have done all this and there is no error anywhere. All batteries are connected according to Victron instructions, we also have balancers connected, also from Victron. The batteries are all good and almost new. The battery data is attached in the thread above.
The numbers tell a different story, you have two parallel 48v strings, according to soc vs voltage one string is dead or not connected.
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According to the data from SmartShunt, it really does look like that, but everything looks ok when it comes to the connections. My batteries were reconnected by an “expert” when I replaced them not long ago. I would have attached a picture of the battery, but the batteries are positioned in a way that makes it impossible to take a picture. I have already arranged to have the connections checked again, because this is very strange to me too. I will report the results. Thank you 
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We rechecked the battery connections and indeed found that one 48v string was not connected correctly. The balancers were also connected incorrectly. We made the connection again and now it seems to work. Thanks for all the answers