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Showing results 1 to 16 of 16
Search took 0.00 seconds. Search: Posts Made By: beckett
Forum: Lithium Power Systems 24-06-2020, 06:12
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

I think I understand what was the issues, however, could you please clarify why balancing earlier caused "screwed up the balance of the cells by discharging the wrong cell for a long time"? Is this...
Forum: Lithium Power Systems 23-06-2020, 07:42
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thanks, CatNewBee. What have you used to separate your electrical into charge and consumer buses? I wonder if Victron's Lynx DC distribution systems, Victron's PowerIn or busbars worth considering...
Forum: Lithium Power Systems 22-06-2020, 06:01
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

A question about Winston cells dimensions and their expansion forces. I have a battery box that is molded from GRP and 540mm wide. I am planning for 8 Winston 700Ah cells which theoretically should...
Forum: Lithium Power Systems 22-06-2020, 05:17
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

I spoke with Tine from REC and he had some questions I could not find answers yet. Called MV and sent them emails but I think because of COVID they are still not open yet.
Do you know if can I soft...
Forum: Lithium Power Systems 17-06-2020, 15:20
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you. I guess to substitute for the "two missing extra contacts", which you use to control your Quatro, I would let REC SI BMS control the Victron Quatro charging and inverter via CAN bus...
Forum: Lithium Power Systems 16-06-2020, 14:28
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

I am now pretty sure that REC SI BMS unfortunately is a very different beast from REC ABMS.

Ideally, I just needed REC ABMS for 24V or 8 cells... ))) unfortunately the REC SI BMS has only one...
Forum: Lithium Power Systems 15-06-2020, 15:28
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you.
Tonight I am a bit disappointed with myself ... I got an email from REC to realize that I was reading a manual for the wrong BMS. I was looking at the REC ABMS(that you use), however, I...
Forum: Lithium Power Systems 14-06-2020, 16:36
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you. In the diagram it hard to tell if the OPTO CH and DCH interface relay's contacts NO or NC are used, or it does not matter and Quatro could be configured either way?
Have you designed a...
Forum: Lithium Power Systems 13-06-2020, 15:28
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thanks, CatNewBee. All makes sense. The BMS I was going to order is REC SI BMS: REC d.o.o. (https://www.rec-bms.com/BMSSMA.html) which is good for 16 cells config, in my case I am only planning 8S...
Forum: Lithium Power Systems 13-06-2020, 08:19
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you, CatNewBee. For our 24V boat, besides the higher rated capacitors what else would I have to change?
Forum: Lithium Power Systems 13-06-2020, 08:07
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you, Jedi! Yes, I will try to CNB's driver first as it is a proven solution, however, I would need to convert it to 24V and make sure I will not mess something up. Once I have my system working...
Forum: Lithium Power Systems 12-06-2020, 04:30
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you, CatNewBee. I learn something new from every post you do.

Often we try to fix what not need any fixing but that only could be resolved by testing and data of the individual components...
Forum: Lithium Power Systems 11-06-2020, 16:36
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

I am sorry s/v Jedi and CatNewBee but I just posted something before reading your latest 2 posts. I do not have an EE degree so my point of view might be very naive to regards of design a...
Forum: Lithium Power Systems 11-06-2020, 16:18
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

It reminds me of the early days of designing distributed systems architectures... do you remebeber "Two-phase commit protocol"? )))
I am very new to all of this but I would like to make sure my last...
Forum: Lithium Power Systems 11-06-2020, 03:24
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

I guess I was mistaken ... how does the BMS know that the switching of was successful and latching relay is open or closed? I guess BMS does not care and only the driver cares, right? Thank you!
Forum: Lithium Power Systems 10-06-2020, 16:25
Replies: 1,053
Views: 214,570
Posted By beckett
Re: Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

Thank you CNB. I finally came to this page and found this nice schematics! Why the "Yellow switch state" wires are not in use?
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