EG4 RS485 USB Read/Write Cable (LP4 & LL)
This is EG4's read/write cable, the one that lets a laptop talk to your EG4 battery. USB-A plugs into the computer, the RJ45 end plugs into the battery's communication port, and EG4's free BMS Tools software does the rest. It works with the LifePower4 V2, the LL and LL-S packs, and the WallMount indoor 280Ah and all-weather batteries. Over RS485 it reads the pack live, so you can see state of charge, every cell voltage, current, temperature, and any active alarms.
Order-in: ships from our supplier, usually about a week.
5.036 Google reviews- Brand
- EG4 Electronics
- Model
- EG4SPRS485RWCLPLL
- Function
- PC read/write and live monitoring via EG4 BMS Tools software
- Monitors
- State of charge, individual cell voltages, current, temperature, alarm status
- Interface
- RS485
- Connection
- USB-A to RJ45
About this item
This is EG4's read/write cable, the one that lets a laptop talk to your EG4 battery. USB-A plugs into the computer, the RJ45 end plugs into the battery's communication port, and EG4's free BMS Tools software does the rest. It works with the LifePower4 V2, the LL and LL-S packs, and the WallMount indoor 280Ah and all-weather batteries. Over RS485 it reads the pack live, so you can see state of charge, every cell voltage, current, temperature, and any active alarms.
The reason to keep one in the truck is simple. When a pack is acting up, or you just want to confirm it is healthy before an install, this cable is how you look inside the BMS instead of guessing. One thing to know: a battery cannot talk to the PC while it is still wired to an inverter for closed-loop communication, so disconnect the inverter communication cable first, then plug this in and read away.
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