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Good Chinese BMS review
#41
I think one of the major limitations on these is the current limitation ...maximum 60A from I see.  Are folks using multiples of these to increase the current capability?  How?
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#42
You can set in Batrium when to balance. For instance voltage ranges and current ranges.

You can check my videos about it
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#43
I have checked your videos and some are very funny and informative. I think I’ll end up building a DIY BMS soon
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#44
Again though, the maximum discharging current on these is 60A as I understand it. But others on this thread have indicated using several of these in their system. I cannot see how that would increase the discharging current limitation. If it does ...can someone please explain?
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#45
(05-17-2019, 03:41 PM)Headrc Wrote: Again though, the maximum discharging current on these is 60A as I understand it. But others on this thread have indicated using several of these in their system. I cannot see how that would increase the discharging current limitation. If it does ...can someone please explain?

If you mean connected in parallel, then each unit that is attached with divide the max current by the number of units. So if they can handle a 60A max, then using 2 units in parallel could theoretically allow for 120A capacity. Altho, using cheap Chinesium knockoffs, the "rated" current should be cut in half for a more practical limit and the rated amount should be considered the absolute max under a surge (which, even that may be a bit high).
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#46
So if you had a 14s battery that can produce 120 amps continuous discharge ...you could in theory wire two of these up in parallel and it would in theory be a 120 amp BMS?  How does the software handle that with one USB connection?
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#47
I would assume they just configured both bms's 1/2 of the max ratings. So if you set the cutoff amps at 110A, then each one would be set at 55A max. But, this is assuming both bms's will read identical and the current will be 100% balanced between the two units.
As far as software configuration, I would guess both usb connections would be used and two instances of the program launched. Though, I'm not sure.
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#48
It wont work like that
They Arent in sync so One unit Will cut off earlier and the. The other get the full load. Its enough that they potentially drift 5mV and this Will happen. So beware paralelling them
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#49
Sounds pretty iffy/complex to use though. And then you have the cost of two or more of these. I think for small 60A current applications and below it can be of interest. But greater than that I am going to keep looking around.
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