Why does the english version of that chart have columns "Min, Standard, MAX" if you can't change any of the settings?
These are the pre-built units - no way to access the individual cells without tearing the whole unit apart - or finding a way to access BMS readings or use the built-in adapter connections. It's a quandary.
I reset the circuit breaker on mine... but it does list a delay and a release voltage on the BMS specs.
Question: "The do on charge 200 ma"
What the heck does that mean? When does it start? And how would you know?
Bidule: I have to plead ignorance - could you explain that process to me? (DMM measurement at connector - please refer to photo) Thx.
Does that mean the balancing starts on "any" charge - or that it only starts at a particular voltage? Thx."The do (cell balance when its) on charge (but the max balance current is) 200 ma"
Does that mean the balancing starts on "any" charge - or that it only starts at a particular voltage? Thx.
Does that mean the balancing starts on "any" charge - or that it only starts at a particular voltage? Thx.
Since my three units are cutting out at 28.0v it would seem that they will never get a chance to balance. Argh.
Thanks... so turn off circuit breaker - unplug "balance leaf" - apply pos DM lead to connector #1 position and neg DM lead to main neg (at BMS?). Correct? Any significance to red lead (Cell #1? perhaps).
Do you think theres anyway to get a y-connection to that setup for monitoring?
Bidule, I started to follow the directions as stated, but first took a careful look at the connector. There are only 8 pins on the connector, not 9 - first pin being the red wire. How does that affect "- measure cell 8 voltage between pin 8 and pin 9 of the connector"? And how does "main negative" figure into the equation? Wanted to make sure I wasn't off base. Thx.That's not correct.
The correct procedure:
- turn off circuit breaker
- unplug balance leads connector
- measure cell 1 voltage between pin 1 and pin 2 of the connector
- measure cell 2 voltage between pin 2 and pin 3 of the connector
- measure cell 3 voltage between pin 3 and pin 4 of the connector
...
- measure cell 8 voltage between pin 8 and pin 9 of the connector
- replug the connector
- turn on the circuit breaker
It doesn't matter which way around you put the voltmeter leads, the only difference will be a sign "-" on the screen but we don't care, we just want the voltages
Previously I didn't say to turn off the circuit breaker and to unplug the connector because you can do the measurement without unplugging the connector but it's a bit more complicated if you're not familiar and there is greater risk to make a short-circuit between the connector pins with the voltmeter leads, so yeah, don't go this route.
Yes, but you need to find the same connector which is used here and do the Y yourself.
Ah, then they must use the B- for the first cell. That's not super good for accuracy.
So the procedure is the same but for the first cell you need to measure between the big black wire coming from the battery and the first wire of the 8 pins connector.
The first cell should be opposite to the red wire on the connector. But it can also be the red wire. There's no way to tell without measuring the voltage; if you measure almost battery voltage then it's the last cell, so start at the other side of the connector, if you measure about 3 V then you're on the correct wire.
Then follow what I described in my previous post for all the other cells![]()
Bidule, I started to follow the directions as stated, but first took a careful look at the connector. There are only 8 pins on the connector, not 9 - first pin being the red wire. How does that affect "- measure cell 8 voltage between pin 8 and pin 9 of the connector"? And how does "main negative" figure into the equation? Wanted to make sure I wasn't off base. Thx.
I think maybe they have 8 leads, one for each cell and the negative line is the main neg?
First cell = lowest cell = cell on the negative side of the battery.
That's exactly what I described in my previous post actually.