nat
New Member
- Joined
- Jun 12, 2022
- Messages
- 2
Hello,
Finished my DIY solar install at the start of December, 20kW of PV (49 x 410w panels), 3 x Quattro-II 5000 inverters and 12 x Pylontech US5000s for 57kW storage.
All running fine for the best part of a month, up until Christmas Eve 24th Dec, when I got a VRM alert for an "Internal battery error", upon visiting the barn to look at the install I saw one battery had a red alarm light on. Thinking I might be able to fix this by filling them up from the grid I flipped that breaker, the alarm stayed on. I noiticed the min/max cell voltages started to vary greatly when the alarm came on.
They are connected via CANbus from the master to the Victron Cerbo, all 12 in a single comms link A-B string. DC-wise there are 4 banks of 3 batteries, each with their own Keto style DC fuse/disconnector.
Today, I powered down the batteries and removed the unit with the alarm on. I powered them up one at a time and held the SW switch on the master for 4 seconds to reset them all. VRM alarm cleared. I have a USB-RJ45 serial cable on order so I can use BatteryView to investigate further.
Any tips on what to do with the battery I removed? I haven't got another 48v charger, should I add it back into the strings once the serial cable arrives?
Thanks!!
Nat,
Finished my DIY solar install at the start of December, 20kW of PV (49 x 410w panels), 3 x Quattro-II 5000 inverters and 12 x Pylontech US5000s for 57kW storage.
All running fine for the best part of a month, up until Christmas Eve 24th Dec, when I got a VRM alert for an "Internal battery error", upon visiting the barn to look at the install I saw one battery had a red alarm light on. Thinking I might be able to fix this by filling them up from the grid I flipped that breaker, the alarm stayed on. I noiticed the min/max cell voltages started to vary greatly when the alarm came on.
They are connected via CANbus from the master to the Victron Cerbo, all 12 in a single comms link A-B string. DC-wise there are 4 banks of 3 batteries, each with their own Keto style DC fuse/disconnector.
Today, I powered down the batteries and removed the unit with the alarm on. I powered them up one at a time and held the SW switch on the master for 4 seconds to reset them all. VRM alarm cleared. I have a USB-RJ45 serial cable on order so I can use BatteryView to investigate further.
Any tips on what to do with the battery I removed? I haven't got another 48v charger, should I add it back into the strings once the serial cable arrives?
Thanks!!
Nat,