My Build

wim said:
The longmons only get hot when balancing... the green led should beblinking all the time and the red one is on while balancing...

They start working right after connection, it is possible they start bypassing.
You have tocheck the bypass voltage settings with the software and do not forget to a device sync after change the settings.
There is a over heating protection in the longmons, and you can read the temperature on the batrium char screen.


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I havebypass set on 4,14V, might be better to set ita bit lower in your case...

Get those pretty leds blinking... :D
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I copied your settings saved and Sync but Longmons still in constant balance mode. Literally draining the packs


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Why would the Supply Voltage show 5.1 V? Also failing Bypass Test.
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ok Rookie is ok now.Everything looks ok now. I adjusted the Bypass Voltage up to match the current pack voltage and things are cooling down now. Apparently the volt meters on the packs are not even close to actual voltage. That what was throwing me off. Batrium was doing what it was configured to do. I'm impressed.
 
Rahtid27 It will balance down all your packs to 4.14 and since most of your packs are above thats totally normal. Heck you even got cells above 4.2V!!
So nothing there. leave them draining untill 4.14 V if thats your limit.

Bypass tester will fail if the longmons allready are hot when starting it. Rerun that test when they had time to settle down and are ambient temperature.

Supply voltage of 5.1 is since you are only feeding it from USB. You should change that over to beeing feed from the battery bank. Dont forget the fuse for it.
 
daromer said:
Rahtid27 It will balance down all your packs to 4.14 and since most of your packs are above thats totally normal. Heck you even got cells above 4.2V!!
So nothing there. leave them draining untill 4.14 V if thats your limit.

Bypass tester will fail if the longmons allready are hot when starting it. Rerun that test when they had time to settle down and are ambient temperature.

Supply voltage of 5.1 is since you are only feeding it from USB. You should change that over to beeing feed from the battery bank. Dont forget the fuse for it.
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Yes Thanks Daniel. I didnt realize the pack voltages were as high as they were because I have been looking at the meters on the packs. This meters are crap I will remove them or tr to finds one more accurate.
 
Are those meters the adjustable kind? They might just need to be calibrated, if they can be. Look at the back of the meters and if there's a POT back there, then they can be adjusted. Use a small flat head screwdriver and adjust them till they match what your multimeter says. Granted, this may make them more accurate at higher voltages, they may still be off at lower voltages. To test these for both ends of the voltage, it would be good to use a variable power supply if you had one.
 
Has anyone ever seen a case where the Batrium pack voltages are not accurate? I've verified this against 3 different multimeters. They average around 4.05 but the batrium is showing 4.12.

Korishan said:
Are those meters the adjustable kind? They might just need to be calibrated, if they can be. Look at the back of the meters and if there's a POT back there, then they can be adjusted. Use a small flat head screwdriver and adjust them till they match what your multimeter says. Granted, this may make them more accurate at higher voltages, they may still be off at lower voltages. To test these for both ends of the voltage, it would be good to use a variable power supply if you had one.
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Yes Korishan they were adjustable. Thanks for the tip as always!!!!
 
No, no, we definitely can't have that :p
 
wim said:
Impressive...nice work.
Now, next weekend remove your neighbors house becourse it iscasting a shadow on your panels... we cant have that :D
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:DYes I wish I could. Sun was pretty low at this time of day. I will hopefully get some good sun from 11 to 3PM. I cannot take credit for the work done this weekend. This work was done by a Certified Electrician. I now have to wait for city official to certify the work before it can be commissioned. 3 of the 38 panels will go to the disconnect on the left of the inverter. That will support my DIY urges and power Rack Build.


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