DGJBD Bluetooth BMS - a short review
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Pierre
Somewhere down South
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Not advised. Fuses are there to protect your wiring , cabling and the rest of the potential weak points in the system. The BMS protects itself by setting the OC and is a backup to protect the rest of your system. What you should have is a fuse rated at the battery / BMS capacity close to the + terminal of the battery and branch fuses where you split up to lower current rated connectors / outputs.
idontknowwhatimdoing
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Would be great if someone could screenshot their setting for a 280ah xuba.
Whenever I hit reset capacity it goes to 140AH remaining even though max capacity is set to 280 and cycle at 230
Whenever I hit reset capacity it goes to 140AH remaining even though max capacity is set to 280 and cycle at 230
idontknowwhatimdoing
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Pierre
Somewhere down South
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What is your pack configuration - 4s of 280Ah ea ? Are you using the standard 120A DGJBD BMS to control the pack ?
If so , the BMS is trying to operate at its design capacity and you will have to rework the settings. Please tell us more about your setup.
If so , the BMS is trying to operate at its design capacity and you will have to rework the settings. Please tell us more about your setup.
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Sharky722
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My pack is built and I'm testing this bms currently.
I have the nominal capacity entered in the settings of my pack at 560ah (2p4s) but on the dashboard its reading a much smaller capacity remaining.
I was wondering if someone could help me with this please, have I missed something.
I would have thought it would be 560ah remaining.
I have the nominal capacity entered in the settings of my pack at 560ah (2p4s) but on the dashboard its reading a much smaller capacity remaining.
I was wondering if someone could help me with this please, have I missed something.
I would have thought it would be 560ah remaining.
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Pierre
Somewhere down South
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Please post screen shots of your settings. It is advisable to use 2 x 4s strings in parallel with a BMS for each string.
Hi,
I don't have one, but the Victron BMV712 I have on our caravan, required me to syncronise it to 100% after I set the capacity. It does do it automatically, in normal use, but the battery bank was already charged when I installed it. Maybe the BMS needs that too.
dRdoS7
I don't have one, but the Victron BMV712 I have on our caravan, required me to syncronise it to 100% after I set the capacity. It does do it automatically, in normal use, but the battery bank was already charged when I installed it. Maybe the BMS needs that too.
dRdoS7
Sharky722
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These are all the settings from parameter view. I haven't changed anything yet except entering the 560ah
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Pierre
Somewhere down South
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The BMS will 'learn' over time after a few charge / discharge cycles. Try adjusting the 'cycle capacity' ever so slightly. On my one pack the cycle capacity is set at 106Ah and the nominal capacity at 100Ah.
Sharky722
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Ok thank you. This is the first discharge test its doing.
The green circle graph appears to be correct. So maybe it does just need a few cycles.
My BMS figured things out. The Ah remaining was at an odd value of like 90 yesterday. Today it's showing 279. I didn't do anything special. Very minimal discharge overnight, charging by solar.
Is there a way to change the temperatures value to F instead of C?
Is there a way to change the temperatures value to F instead of C?
Sharky722
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Yes mine seems to reading a bit more accurately this morning, seems they do figure things out ? and couple more cycles and it should be spot on hopefully..
I'm on a very limited bandwidth connection out in the boonies. Rather than start a new thread, I'll add my question here.
I have a table of suggested parameter settings for the Overkill BMS. These came from another forum member. However, the names of the parameters in the table don't match up with the parameter names I'm seeing in the Xiaoxiang Android app.
The first lines in the table are:
Parameter Default Units Suggested Comment
Cell High Alarm 4.25 V 3.75 Typical charge voltage is 3.65V
I don't have a parameter with that name. Is it possible the parameters are named differently on the Apple app?
I have a table of suggested parameter settings for the Overkill BMS. These came from another forum member. However, the names of the parameters in the table don't match up with the parameter names I'm seeing in the Xiaoxiang Android app.
The first lines in the table are:
Parameter Default Units Suggested Comment
Cell High Alarm 4.25 V 3.75 Typical charge voltage is 3.65V
I don't have a parameter with that name. Is it possible the parameters are named differently on the Apple app?
thedodgersonline
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thedodgersonline
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Hi
Here is a link to many resources / manuals etc for this BMS. There is a ‘factory setting’ file. You will get access to more parameters via a computer connection though.
Regards
not on android.wish it were.
where is link?
thedodgersonline
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Does this meter show charge and discharge? Or is it only one way?Hi
waiting for this one to pitch up
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Regards
Bob
