Product Manual
Table Of Contents
- Lynx Smart BMS
- Table of Contents
- 1. Safety Precautions
- 2. Introduction
- 3. Features
- 4. Communication and interfacing
- 5. System Design
- 6. Installation
- 7. Commissioning the Lynx Smart BMS
- 8. Operation Lynx Smart BMS
- 9. Troubleshooting and Support
- 9.1. Lynx Smart BMS does not power up
- 9.2. Lynx Smart BMS operational issues
- 9.3. BMS issues
- 9.3.1. The BMS frequently disables the battery charger
- 9.3.2. The BMS is prematurely turning chargers off
- 9.3.3. The BMS is prematurely turning loads off
- 9.3.4. The pre-alarm setting is missing in VictronConnect
- 9.3.5. BMS is displaying alarm while all cell voltages are within range
- 9.3.6. How to test if the BMS is functional
- 9.3.7. System in sleep or hibernate mode
- 9.3.8. Battery communication error
- 9.4. Battery monitor issues
- 9.5. VictronConnect issues
- 9.6. GX device issues
- 10. Warranty
- 11. Technical specifications Lynx Smart BMS
- 12. Appendix
Once the loads have been turned off due to low cell voltage, the cell voltage of all cells needs to be 3.2V or higher before the
BMS will turn the loads back on.
9.3.4. The pre-alarm setting is missing in VictronConnect
Pre-alarm is only available if the battery supports it. The current battery models all support it, but older batteries do not have the
hardware necessary for the pre-alarm feature.
9.3.5. BMS is displaying alarm while all cell voltages are within range
A possible cause is a loose or damaged BMS cable or connector. Check all BMS cables and their connections.
First rule out that the cell voltages and temperature of all connected batteries are in range. If they are all in range, then follow one
of the following procedures.
Also consider that once there has been a cell under voltage alarm, the cell voltage of all cells need to be increased to 3.2V before
the battery clears the under voltage alarm.
A way to rule out if a fault is originating from a faulty BMS or from a faulty battery, is to check the BMS using one of the following
BMS test procedures:
Single battery and BMS check:
• Disconnect both BMS cables from the BMS.
• Connect a single BMS extension cable between both BMS cable connectors. The BMS cable should be connected in a loop, as
in below diagram. The loop tricks the BMS in thinking that there is a battery connected without any alarms.
• If the alarm is still active after the loop has been placed, the BMS is faulty.
• If the BMS has cleared the alarm after the loop has been placed the battery is faulty and the BMS is not faulty.
Testing a Lynx Smart BMS by connecting a single BMS extension cable to both BMS cable connections
Multiple batteries and BMS check:
• Bypass one of the batteries by disconnecting both its BMS cables
• Connect the BMS cables of the neighbouring batteries (or battery and BMS) to each other, effectively bypassing the battery.
• Check if the BMS has cleared its alarm.
• If the alarm has not been cleared, repeat this for the next battery.
• If the alarm is still active after all batteries have been bypassed, the BMS is faulty.
• If the BMS cleared its alarm when a particular battery was bypassed, that particular battery is faulty.
BMS
Eliminating a BMS error by bypassing a suspect battery
Lynx Smart BMS
Page 41 Troubleshooting and Support