FlexiBMS Lite - Flexible Configuration BMS w/ CAN-bus

Esk8 Electronics New Tech & Development
#667

I have just sent the tracking links to all shipped orders, check your email.

:+1:

I will start working on the rest of the 75 boards this week. I’ll update on the situation as it progresses.

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#668

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Postman arrived. the components are amazingly well lined up pick and place me nine has done grate job

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#669

Got mine as well, Thanks!

#670

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XT30 vs XT60

XT30 rated for 15A continues Flexi BMS rated for a 8A charge Current down side is XT30 only take a AWG18 cable 0.82mm2 and my fuse holders have bigger cable.
With the XT double the width I’m thinking little tails are my best bet

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#671

I have 100% soldered 16awg to xt 30

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#672

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This is 14awg on a xt30

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:framed_picture: Reply to “Pictures and nothing else” thread_2020_summer
#673

Don’t talk to me or my son ever again.

8 Likes
:framed_picture: Reply to “Pictures and nothing else” thread_2020_summer
#674

That escalated quickly :rofl:

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#675

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#676

Would it be possible to run multiple of these in series for a 20s pack?

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#677

You won’t be able to use CAN-communication, but it could be done if you only use them to independently charge them as two series 10S packs. You can’t connect the single charger to both packs at the same time though, so you’ll either need to charge them one-at-a-time or use two floating output chargers to charge both packs at the same time. AKA, charging wise, handle them as two independent packs.

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#678

@SimosMCmuffin this changed from 10A?

#679

Nope, don’t know where that 8A rating has come from, maybe some older HW version, but current HW from 0.4 forward officially supports up to 10 Amps charging current.

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#680

Thanks, will test soon dual chargers in parallel and didn’t want to fry anything

#681

Thanks, i had to do a quick read on floating outputs, and that actually taught me a bunch :nerd_face:.

I was hoping for the nice can-bus and single charger solution.

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#682

Unfortunately, no.

FlexiBMS Lite doesn’t support series daisy-chaining.

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#683

Then it sounds like there is customer demand for a higher cell count FlexiBMS. I’buy one. Or three :slight_smile:

3 Likes
#684

Wow I didn’t know how little it was, nice work

#685

is it just a matter of the not (yet) isolated CAN-Bus?
Or are there other things?
Because otherwise you could just swap the CAN-IC to an isolated one and daisy-chain them on the CAN, but in general still treating them as own packs.

#686

Yes sorry was from back when you were having heat issues with mosfets Over 7 amps before you swoped them my mistake