Mercedes OEM L09-1 EV Battery is pretty cool.

Fosterqc · August 17, 2020, 9:50pm

This good disassembly video*:

*don’t follow all the steps if you want to use it as a 12S.

Anyways I got one and I kinda want to get another to try it again without removing the Balance PCB like he does in the video.
20200730_191112
One cool thing I thought of is because there are 3 terminals on the battery, you can have the two main battery terminals and then the BMS charge - on the 3rd terminal. Then the charger would hook up to that and the main battery pos. No drilling in a charge port!

Fosterqc · August 17, 2020, 9:51pm

What follows is me fixing my mistake of removing the PCB and having to find a new way fo attaching the balance leads of this Smart BMS

Fosterqc · August 17, 2020, 9:56pm

Decided to use the foil crimp scraps from trimming them to fit the Spim08hp cells as I have been looking for a use for them.

I had to get part of the tab up on this one side where they are harder to pull up, other side is simple.

hope it works good, taking it apart is a bitch.

Agressivstreetlamp · August 17, 2020, 10:06pm

Sweet. Are you keeping the whole thing as topmount?

Meaning the massive case

Fosterqc · August 17, 2020, 10:08pm

yeah, I need to add to the post how the whole top of the battery/case is actually a interesting water-cooling block. So I’m dying to put one super powerful ESC on there, and also hook up the motor to the cooling loop. That would be a first I’m pretty sure.

Battery, esc and motor all liquid cooled.

Real liquid cooling not crapor chambers lolz

Scepterr · August 17, 2020, 10:14pm

Can you post dimensions of the pack

Fosterqc · August 17, 2020, 10:15pm

yeah let me quote some of my posts from when I was messing up and around

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Fosterqc · August 18, 2020, 4:30am

@kook

kook · August 18, 2020, 4:31am

thank gawd it’s not fukking HOT GLUE!

Fosterqc · August 20, 2020, 7:29pm

just need to figure out what connector(s) I want to use but otherwise ready to run

This is to test it while I figure out how to use the plastic terminal thing, basically buy the ring terminals and get the bluetooth dongle wires to go through it.

Fosterqc · August 20, 2020, 7:33pm

Ok and I figured out how to bolt these down to a deck:

Flip it on it’s side and you get those bolt holes on the ends and side.

The bolts from the haggy mounts fit perfectly. Anyone know what size those are? I’m lazzy

thisguyhere · August 20, 2020, 7:33pm

Maybe I missed it but how are you using this? For esk8? Or something else?

Fosterqc · August 20, 2020, 7:35pm

top mount esk8 for now but it’s just a giant aluminum battery with a bluetooth bms for all your 19Ah aluminum battery with a bluetooth bms for <$200 shipped needs

Allow me to answer your question with pictures:

The Escs have to get mounted sideways

Fosterqc · October 10, 2020, 7:09pm

my idea was that this is the perfect battery to stress test single motor + ESCs (more load in 1 spot)

Picking a watercooled motor is not too easy but I have these options.

or same for double the price lol

or this huge thing that might have the best $/performance

@Battery_Mooch lmao

Battery_Mooch · October 10, 2020, 7:12pm

Aha…brilliant!
Yea, great idea. If you are using water cooling then you can do both the pack and that monster motor… woof.

Scepterr · October 10, 2020, 11:14pm

mine came in today

Fosterqc · October 10, 2020, 11:41pm

hellll yeah

see if you can crack open the DC to DC module and put ESCs inside, would need heat because the glue is pretty strong.

Scepterr · October 11, 2020, 6:26am

@Fosterqc notice this plate sitting under the battery?
heater for the battery?

Fosterqc · October 11, 2020, 6:41am

you are funny, that’s the watercooling loop silly!

Take the DC converter thing on the “bottom” off and it should be obvious, there is a stir welded chamber for the liquid to pass though.

You can smell the coolant a little.

Scepterr · October 11, 2020, 6:42am

I’m not talking about the loop… there’s a plate above it with power going to it

that’s a peltier maybe