G GaryVolt New Member Joined Jan 17, 2021 Messages 18 Jun 19, 2022 #1 Can Some one tell me why my JBD 7s - 20s 200amp BMS. Is oscillating "opening and closing" the main contactor when I charge it??
Can Some one tell me why my JBD 7s - 20s 200amp BMS. Is oscillating "opening and closing" the main contactor when I charge it??
John Frum Tell me your problems Joined Nov 30, 2019 Messages 15,234 Jun 19, 2022 #2 GaryVolt said: Can Some one tell me why my JBD 7s - 20s 200amp BMS. Is oscillating "opening and closing" the main contactor when I charge it?? Click to expand... Could it be opening the contactor on cell over-voltage then the high cell settles and the contactor closes?
GaryVolt said: Can Some one tell me why my JBD 7s - 20s 200amp BMS. Is oscillating "opening and closing" the main contactor when I charge it?? Click to expand... Could it be opening the contactor on cell over-voltage then the high cell settles and the contactor closes?
John Frum Tell me your problems Joined Nov 30, 2019 Messages 15,234 Jun 19, 2022 #3 smoothJoey said: Could it be opening the contactor on cell over-voltage then the high cell settles and the contactor closes? Click to expand... Guess it could also be over-current.
smoothJoey said: Could it be opening the contactor on cell over-voltage then the high cell settles and the contactor closes? Click to expand... Guess it could also be over-current.
G GaryVolt New Member Joined Jan 17, 2021 Messages 18 Jun 19, 2022 #4 No the it's not connected to anything and I was charging it to at 10 amps
John Frum Tell me your problems Joined Nov 30, 2019 Messages 15,234 Jun 19, 2022 #5 GaryVolt said: No the it's not connected to anything and I was charging it to at 10 amps Click to expand... Which of my posts are you replying to? Is your charger bypassing the contactor?
GaryVolt said: No the it's not connected to anything and I was charging it to at 10 amps Click to expand... Which of my posts are you replying to? Is your charger bypassing the contactor?
G GaryVolt New Member Joined Jan 17, 2021 Messages 18 Jun 19, 2022 #6 The only way I can charger is to bypass the contactor. All the cells are pretty even they are with in .02 of each other. I don't see any over temp, over current issues. Last edited: Jun 19, 2022
The only way I can charger is to bypass the contactor. All the cells are pretty even they are with in .02 of each other. I don't see any over temp, over current issues.
G GaryVolt New Member Joined Jan 17, 2021 Messages 18 Jun 19, 2022 #7 Here's a screenshot Attachments Screenshot_20220619-144008.png 376.4 KB · Views: 28
7 740GLE Solar Wizard Joined Apr 30, 2021 Messages 3,392 Location NH Jun 19, 2022 #8 What kind of cell type are happy at that voltage? Is the BMS configured for that type of cells? Post up screen shot of the parameters of the BMS.
What kind of cell type are happy at that voltage? Is the BMS configured for that type of cells? Post up screen shot of the parameters of the BMS.
G GaryVolt New Member Joined Jan 17, 2021 Messages 18 Jun 20, 2022 #9 There 4.2volt cells I believe the bms is faulty.
J justgary Solar Addict Joined Jan 1, 2022 Messages 982 Jun 20, 2022 #10 GaryVolt said: There 4.2volt cells I believe the bms is faulty. Click to expand... Do you have it wired correctly? How many cells do you have, and what type are they?
GaryVolt said: There 4.2volt cells I believe the bms is faulty. Click to expand... Do you have it wired correctly? How many cells do you have, and what type are they?