Hello, I try to avoid to drop link, however just google seplos, and look for MASON DIY kit for EVE280Ah cells. Someone else have an other company build a box, and Amy W. has also a box. If I have time I'll try to summarize in a document the 3 box solution available for seplos BMS, and EVE LF280/304Ah cells, and publish it in the resource section if it is allowed ;-)
custom made battery box for eve LF280K cells
- Thread starter sergea
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A comparison would be great!
Not really a like for like comparison as the four units required to accommodate 16 cells works out $200 more than a Seplos and you get non of the benefits, such as the BMS, LCD screen and most importantly the form factor. Also theres the additional costs/time involved paralleling all the batteries.
Yeah but does the Seplos come with angry messages and blackmail?
houseofancients
Solar Wizard
completely different league, and certainly seplos is a much better company.
how on earth can you compair a flimpsy 3d printed kit , to the mason kit is well beyond me
houseofancients
Solar Wizard
i takes a few cycles to calibrate..
is also stated in the manual , i suggest you read that
I did read the BMS manual. I was aware of the fact it takes time to learn the behavior and capacity via multiple charge/discharge cycles.. I was providing a review of my experience with the battery (as requested), and verifying the experience and documentation match. I was not criticizing the battery or BMS. If you can't tell via my multiple posts on this subject - I'm a fan of the system.
Seems very positive bar the old batteries. I'm glad I resisted the offer of buying my batteries from Seplos now.
Looking forward to the 280AH Mason build. Perfect timing.
RandyP
Solar Enthusiast
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what source for your batteries ?
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
I considered them but $600 a piece was just a bit much for me.
If I had not already bought all the JKB BMS I might have went that way..
Shenzhen Luyuan via Amy Wan. I could have gotten them slightly cheaper elsewhere, but given there is pretty much no option for return when buying from China I wanted to play it safe and they/she has a great reputation.That's just the sticker price. You'll almost certainly get $100 knocked off if you ask for their best price. Possibly more if you are cheekier than I am.
houseofancients
Solar Wizard
i got mine for 450
RandyP
Solar Enthusiast
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Did you buy A(utomotive) grade batteries, or rejects Grade B batteries ?
yep I can confirm she has , I got A cells from Amy W (with test report, going to be used with seplos BMS) and cells from docan (non test report, so rejected cells, going to be used with JK BMS, as the cells are not matched by capacity the 2A active balancer will help a little if ever needed) .
A Grade. I wouldn't waste my time on B grade cells, other than maybe some kind of off grid shed project.
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
Who did you buy them from at that price?
houseofancients
Solar Wizard
seplos, directly, but i've had one for quite a while now
see my post april 19th
New 48 volt rack battery specs-what do you want to see?
Pipe dream but the only way I’d ever purchase a server rack style battery is if it could be configured without a BMS. Ideally just cells, in an enclosure with a balance port. Let me choose my own BMS and breaker. have thought of that
diysolarforum.com
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Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
Yea I would need like 11 of them.
Not sure it would be worth it at this point..
It would be nice to have everything enclosed but it works as is..
