Apexium 280ah Enclosures

[dmkjr]

After three months, I’ve received my order. Will update here to show the progression.

-(6) Apexium 280ah enclosures
-(96) Grade A 280ah Eve cells
-active balancing added

(working on pictures, have to resize them all for the forum)

 

[Culchee]

3 months... that’s a long wait... good luck with the project..

 

[dmkjr]

Pics added. One battery down. Took 14 hours to charge with a 15a 48v Charger.

 

[Culchee]

Pics added. One battery down. Took 14 hours to charge with a 15a 48v Charger.

I just received read your original post... that’s a big system..?

 

[Culchee]

I just received read your original post... that’s a big system..?

Lol... spell check drives me nuts.. reread...

 

[Culchee]

The bms PCB is something I’ve not seen before... beats all the wire spaghetti creeping around... I’d imagine it’s cheap to manufacture..mind you everything is in China.. Good timing... Red Sea looks like it’s being avoided by China now... nightmare for shipping..?

 

[Alkaline]

After three months, I’ve received my order. Will update here to show the progression.

-(6) Apexium 280ah enclosures
-(96) Grade A 280ah Eve cells
-active balancing added

(working on pictures, have to resize them all for the forum)


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Wow everyone is building these monster installs! I need to step up I just started on an eel v3! Nice thread!

BTW did you get a test report from APeximum on your cells?

Thanks

 

[houseofancients]

Pics added. One battery down. Took 14 hours to charge with a 15a 48v Charger.

Temp sensors should be connected to the terminal, as it also does resistance sensing.
Also make you torque the nuts to 4-5 nm

Otherwise, nicely done

 

[houseofancients]

The bms PCB is something I’ve not seen before... beats all the wire spaghetti creeping around... I’d imagine it’s cheap to manufacture..mind you everything is in China.. Good timing... Red Sea looks like it’s being avoided by China now... nightmare for shipping..?

All seplos boxes have these now

 

[Quattrohead]

Go hard or go home, love it.

By the way I bought and tried a couple of different boxes and did not really like them at all, I should endeavor to do a write-up with pictures at some point in time soon.

 

[houseofancients]

Go hard or go home, love it.

By the way I bought and tried a couple of different boxes and did not really like them at all, I should endeavor to do a write-up with pictures at some point in time soon.

Which ones did you test ?

 

[dmkjr]

Temp sensors should be connected to the terminal, as it also does resistance sensing.
Also make you torque the nuts to 4-5 nm

Otherwise, nicely done

The picture was taken before it was completed. The temperature sensors are installed. And also it was torqued correctly. as correct as my Chinese torque wrenches, is anyway.

 

[dmkjr]

Have 5 of them built. Don’t mind my rigged up charging from my golf carts lithium charger. It’s the fastest thing I have other than my 6000xp’s which are in service.

 

[dmkjr]

There has definitely been some quality issues with the Apexium kits. Things that just don’t make sense. Spot something wrong here?

 

[Lt.Dan]

View attachment 185091

There has definitely been some quality issues with the Apexium kits. Things that just don’t make sense. Spot something wrong here?


View attachment 185092

Did they paint the terminals?

 

[Lt.Dan]

Go hard or go home, love it.

By the way I bought and tried a couple of different boxes and did not really like them at all, I should endeavor to do a write-up with pictures at some point in time soon.

What did you not like? I have 3 Seplos cases and love them

 

[dmkjr]

Did they paint the terminals?

Look at the mounting bracket on the ends of the management board PCB. It’s completely not there.

Random things like this. One case was missing the foot rest on the top plate to stack them. Still stacked fine but doesn’t keep it dust tight now.

 

[dmkjr]

What did you not like? I have 3 Seplos cases and love them

Not that I don’t like them. Love them actually. Just their QC could use a hand.

I also ordered active balancing. It was $50 extra per box but yet doesn’t appear this does active balancing.

Waiting on the rep, Jenny, to get back with me.

 

[Lt.Dan]

Not that I don’t like them. Love them actually. Just their QC could use a hand.

I also ordered active balancing. It was $50 extra per box but yet doesn’t appear this does active balancing.

Waiting on the rep, Jenny, to get back with me.

I was wondering about @Quattrohead and his opinion on a couple different ones.

The Seplos V3 BMS does active balancing internally. See Andy at Off-Grid-Garage's recent videos about it. They are the same as the Apexium cases.

 

[Quattrohead]

Give me a few days to do a report on the boxes I didn't like. It's not Seplos or Apexium though.