Cloroxbottle
New Member
I have some questions about a 12V battery bank on my new to me boat. It consists of four Valence U27-12XP batteries that were wired in parallel without an external BMS, but voltage-disconnect protected by a Victron Battery Protect device. I've removed the batteries for testing at home. The LED behavior I am describing was occuring before I disconnected them.
Two of the batteries seem to be fairly happy (with a five second green flash and minimal voltage variability) and good states of charge. I plan on reusing these two.
One (that I'm addressing here) is flashing red every 5 seconds and I've retrieved the attached screenshot using the Valence software and cable. I'm guessing that the red flash is due to the intercell variability (lower voltage) on #4? Is there a way to try and rectify this besides the 12 hours of sit at open circuit and then charge it? If I cannot get the flashing red to go away, is this safe to hook back up with the other two and use in parallel as is?
Finally, the fourth battery is showing a steady red LED. I cannot find an interpretation for this online, and the software has been unable to locate the battery when I plug the USB-RS connector in. I'm assuming that this means that this battery is toast (maybe due to the failure of the internal BMS/circuits) and that this one cannot be reused...?
I'd appreciate your thoughts.
Two of the batteries seem to be fairly happy (with a five second green flash and minimal voltage variability) and good states of charge. I plan on reusing these two.
One (that I'm addressing here) is flashing red every 5 seconds and I've retrieved the attached screenshot using the Valence software and cable. I'm guessing that the red flash is due to the intercell variability (lower voltage) on #4? Is there a way to try and rectify this besides the 12 hours of sit at open circuit and then charge it? If I cannot get the flashing red to go away, is this safe to hook back up with the other two and use in parallel as is?
Finally, the fourth battery is showing a steady red LED. I cannot find an interpretation for this online, and the software has been unable to locate the battery when I plug the USB-RS connector in. I'm assuming that this means that this battery is toast (maybe due to the failure of the internal BMS/circuits) and that this one cannot be reused...?
I'd appreciate your thoughts.