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Yes Chris, are the calculations that I had, I do not know if there will be any problem in my batteries ... I started my system on Sunday 26. The new Trojan batteries began to load immediately (Trojan recommends "equalization charge" to New batteries but unfortunately the limitation of my current inverter does not allow me to do it, for that reason I am thinking of buying a specific MPT Charger Midnite or Victron ... but that will be a reason for a future post ) . I set the load current to 20 Ah in the corresponding program. Unfortunately the Voltage of my inverter does not reach the one recommended by Troyan for the "Bulk" load, but I set it in the highest possible value ... I left for about 24 hours charging the battery bank until it reached the float voltage. I had set the voltage of CUT OFF in program [19] to 47.0 Volts. I have an Eastron 220 Mod Bus Power Meter and before simulating a grid power failure I noticed that the consumption during the last 5 minutes was between 900 and 1050 watts of active power. I was surprised to note that once I made the cut of the grid Energy, there were no more than 7 (SEVEN) !!! Minutes until the alarm of imminent cut of my current inverter began to ring ... I'm going to set the program [19] to 46.0 Volts. Thank you for your comments !

Many thanks @Chris, as always willing to help and so clear in your answers. I confirmed that the program number is [#19]. My inverter is a MPP Solar Hybrid V of 4Kw and the program numbers must be different from those of Axpert . For the anxiety of starting my system I have not yet connected the BMV-702, but I will do it as soon as I can. While we all know that it is possible to calculate what I am going to ask you mathematically, and based on what you comment in the sense that you have a small battery bank (I see that it is 260 Ah), mine is even lower (225 Ah ) And because of your experience of use, I ask you what discharge rate (in Watts) is the time it takes for your BMV to send the cut signal from your fully charged battery bank in float state, for example with a Consumption of 1,000 Watts, having adjusted the BMV at 55% SOC?

Hello Chris. Sorry for the question, but I'm confused. I was able to operate my system, among them there is a parameter corresponding to Program No. 19 "Low DC cut-off battery voltage Setting" that I can not understand in what value to fix so that my batteries do not get discharged more than 40% (theoretical SOC 60%). My inverter allows a Range of between 40.8 to 48.0 Volts with 0.1 volt intervals. What would be the value (Volts) that you would place if you wish that your batteries do not discharge more than 40%? Thank you very much.

Thanks Chris !

Thanks @Chris, the batteries are very expensive and I want to take care of them without being too obsessed with them . I also made a spreadsheet with the adjustment of the bulk voltage according to the increase or decrease of the ambient temperature. How many times a year do you correct this value in your inverter Chris?

Many thanks @ plonkster, I do not have a complete Victron system. Sorry, I was wrong, apparently not in the calculation of the SOC but if it intervenes in the accuracy of the calculation of the remaining capacity. In fact, it could serve to estimate the remaining battery capacity "depends on the ampere-hours consumed, discharge current, temperature, and the age or the battery", first paragraph of this : https://www.victronenergy.com/upload/documents/Datasheet-BMV-700-series-EN.pdf It may make sense for a finer tuning of the remainder capacity calculation algorithm ... but it seems that I spent some useless dollars . To take care of my batteries, as these are new, I am thinking of the Cheap Battery Equalizer. I would prefer the Victron but I consulted with them and they told me that they still do not have their devices for 6 Volts batteries.

Hello ! I'm finishing up my system and I have doubts regarding my bmv702. I bought the accessory probe to control the temperature of the batteries, which in my first studies I considered necessary since if I am not mistaken it is information that is required for a better estimation of the SOC of the arrangement of batteries. However I see that many forum members use the midpoint measurement option and as both are exclusive I consult on which you estimate is a better option if you were to set up a system with 8 new Trojan batteries? Thanks !

@Mani, I'm sorry I still have not finished installing my system yet. I hope in a couple of weeks to have the system working and in about three weeks more after tuning the inverter settings start testing the control software. I'm going to keep you informed, however by the specifications of the Infini V 1kw-5Kw I see that my hybrid 4Kw Mpp Solar inverter is identical to the Infini Hybrid, so I guess I'll have to wait for your version of the software for this type of inverters. You will have a secure client. Thank you very much

Thanks to all the participants. Between all is slowly clearing, however now the doubt, at least mine, and sorry if I did not understand something, the nationality of the original design: Taiwan (China) / Germany ??

Hi ! "Axpert", "Infini", "Mpp Solar". All look similar. The identical or almost identical specifications. What is the original engineering brand and / or the copies (fakes with another brand)?

All ok ! We anxiously await the version for the Hybrid Inverters

Yes @Mani was the first section I consulted, but for "Newbies" there is a problem, when trying to download any file the following warning appears: "You may only download files after you have made 15 posts.", Although perhaps you mean another Section of the Web Site that I have not seen. Thanks again !

@Mani !! I just found the Link to be able to download the program, for "novices" it is not clear where to find it. Thanks again !!!

Ok. Any link for download please ? Thanks.

Is this: http://www.ebay.com/itm/162310338361 Thanks.

Hi ! This is my first post and I take this opportunity to greet everyone. @Manie will consult you if you have tested your software on Solar Mpp inverters Models "Hybrid V". Specifically the model of my inverter is the 4048V or have you received any comment that works well on this device? I plan to couple a second inverter in parallel and I am very interested in the software for Windows that you sell. Thank you very much.