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Ah solar rat you legend. I finally get it man, that's cleared up a lot. Looking at the graph I still had questions as I wasn't exactly sure what was going on. Great explanation. Thank you

Apprciate all the advice. Thank you

Would you have a recommendation for the type of sensor I could purchase in regards to a shutlnt sensor for checking capacity

I understand the SOC levels and that's why I'm worried that it's going so low so fast. Yes I have a DMM, that's how I read the voltages

All the voltages are the exact same. What I'm saying is that there is a voltage drop on each cell. So when a load is put on the battery the it drops from 26.4V to 26.0V

Sorry if it came a cross that way, just trying to be clear. I do appreciate you trying to help. Yeah it rebounds but ever so slowly. Like about 10 minutes. The load itself I put on it is around 100w

Ah sound man I do appreciate your help. You read me like a book too. I'm under serious stress. I'm an electrical engineering student in my final year and spent my last penny on those batterys. Housing prices are nuts in Dublin so I'm living off grid

So judging from the data on the Mppt the lowest it got was 25.5V. The mppt is the Victron 75/10 without Bluetooth. I've it connected to a dongle

It's the heart of winter here in Ireland. I could but would probably take too long, so wouldn't be realistic

Oh that's good news. Thanks. Should I just top balance them now as the bank is at its upper limit?

It is viable, just don't really want to be at the mercy of the weather over the following week. I'd much prefer to have my batteries full and just go about my business if you know what I mean

Yes, at the end of January I'm completing a wind turbine emulator for my final year project. Great minds think a like!!

What do mean constant V and I. Its a 24V solar system with a 24V battery protect. The mppt upper limit is 28V and the float is 27V

I thought I address it in the first message. What other information is needed. I hope I dont come accross as being cheeky, just want to get the correct info for you. I'll check my bms manufacture now and info. Thanks

I was mistaken about the product being Dali. I've attached a picture of the product and the data sheet RJ Energy send me. I've notice they don't seem to be consistent of each other.

Yeah that's a good point. So I measured the voltage of the bank with: Cheap volt meter =27.1 Victron Mppt = 26.98 So maybe when the volt meter read 3.67, it's over calculating it's value. Would that be correct.

Ok. Thanks again for your help everyone. I really appreciate it.

Hello I've being reading up a lot of the charging profile for Lifepo4 and I'm a little confused as there seems to be conflicting answers. A lot of people are saying the the Li Ion setting is too high. But when I read Wills instructions he recommends the same float and abs parameters that are the...

I'm just curious as to why is a bottom balance is needed if an active balancer is installed from the beginning . Thanks

So I'm still pretty new to this and a bit confused. I watched all of Wills videos. So I've discharged my 24V system down to 10% SOC and my batterys are all within 0.05V of each other. Do I still need to bottom balance them because in Wills videos he said it should be fine if they're within that...

Ah I get you, too much work for the device. Thanks for the info

So I'm still pretty new to this and a bit confused. I watched all of Wills videos. So I've discharged my 24V system down to 10% SOC and my batterys are all within 0.05V of each other. Do I still need to bottom balance them because in Wills videos he said it should be fine if they're within that...

So I but 8* 3.2V 202ah batterys in series. I discharged the batteries to 24V and all cells had the same voltage. I then charged them without the BMS using a Victron charger which had a voltage limit of 28.4. Now when I put my batteries back in my solar system I have the mppt at 26.4V but as soon...

Gentleman!!! Thanks for taking your time to answer me, really helped. Much appriciated.

Yeah that's not a bad idea. When I top balance using power resisters should I disconnect the panels and loads and let the voltage settle . Or do I drop the voltage with the resisters while it's still actively charging.

I came back in to ask that question, so thanks for your reply. When I caught the 6th cell hitting 3.67V while in Absorbtion and the other cells where around 3.45V/3.5V. I disconnected the bank form the panels and loads. I theb put across some power resisters across the 3.67V cell and dropped...

Bluemalibu I understand that the BP can monitor the the voltages. But if its not going through the BP, how can it cut it off. Thanks

OK I will do tomorrow. Thanks for the advice

OK I will do tomorrow. Thanks for the advice

Yes I've seen this video and it's very informative. What I'm trying to clarify is weather I should top balance it while its in absorbtion . Or when it's fully charged, should disconnect the charger and loads and let the voltage settle for an hour and then top balance