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bluetooth bms wire conection?
#1
Hi, first sorry for my english, im spanish. I want to make a lithium battery for ebike with bluetooth bms like that.

https://es.aliexpress.com/store/product/...a5033de722

 Has (B-) (P-) and (C-) 
And a lot of wires to balance

Dis you know how i have to conect?

Thank you for reading!
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#2
I just have them in testing as 10s version.

-B goes to the battery together with the black wire.

-C is the connection to loadand charge.

Red wire goes to top of battery, as well as + for charge and load.

The white wires goe to the batteries connectiong points, one after the other, in the correct order of increasing voltage.

Follow the somehow strange instructions they deliver, its basically correct.

In my case they say dont use the -P connection, that MAY be the same for you, check on this.
1 kWp in Test
4 kWh battery target - plus Mobile Home battery
Ultra low cost
Electronics ? No clue. Am machinery engineer.
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#3
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#4
that BMA is not worth you have to find one of 14 S which you have is 13 S
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#5
(04-29-2019, 08:57 AM)juanjo57 Wrote: that BMA is not worth you have to find one of 14 S which you have is 13 S
how do you know he needs 14s ?
1 kWp in Test
4 kWh battery target - plus Mobile Home battery
Ultra low cost
Electronics ? No clue. Am machinery engineer.
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#6
Cherry67 you have to add 14 S X 4.2V = 58.8V
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#7
(04-30-2019, 05:33 AM)juanjo57 Wrote: Cherry67  you have to add 14 S X 4.2V = 58.8V

Hi, i understand the calculation, but i still ask where did you get the voltage (58,8V) from ? I see nothing like that from the OP.
1 kWp in Test
4 kWh battery target - plus Mobile Home battery
Ultra low cost
Electronics ? No clue. Am machinery engineer.
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