Lithium NG 12,8V battery manual Table of Contents 1. Safety precautions ................................................................................................................... 1 1.1. General warnings ............................................................................................................ 1 1.2. Charge and discharge warnings ........................................................................................... 1 1.3. Transportation warnings .................................................................................................... 2 1.4.
Disposal of lithium batteries ................................................................................................ 2 2. Introduction ........................................................................................................................... 3 2.1. Description ................................................................................................................... 3 2.2. Features ...................................................................................................................... 3 3. System design and BMS selection guide ........................................................................................ 4 3.1.
Maximum number of batteries in series, parallel or series/parallel configuration .................................... 4 3.2. The BMS alarm signals and BMS actions ................................................................................ 4 3.2.1. The BMS's pre-alarm signal ...................................................................................... 5 3.3. The BMS models ............................................................................................................ 6 3.3.1. The Lynx Smart BMS NG ........................................................................................ 7 3.3.2.
The smallBMS NG ................................................................................................ 7 3.3.3. The VE.Bus BMS NG ............................................................................................. 8 3.4. Charging from an alternator ................................................................................................ 9 3.5. Battery monitoring ........................................................................................................... 9 4. Installation ........................................................................................................................... 10 4.1.
Unpacking and handling the battery ..................................................................................... 10 4.2. Download and install the VictronConnect app ......................................................................... 10 4.2.1. Update the battery and BMS firmware ........................................................................ 10 4.3. Initial charging before use ................................................................................................ 11 4.3.1. Why charge batteries before use .............................................................................. 11 4.3.2.
How to charge batteries before use ........................................................................... 11 4.4. Mounting .................................................................................................................... 13 4.5. Connecting battery cables ................................................................................................ 13 4.5.1. Cable cross-sectional area and fuse ratings ................................................................. 13 4.5.2. Connecting a single battery .................................................................................... 13 4.5.3.
Connecting multiple batteries in series ....................................................................... 14 4.5.4. Connecting multiple batteries in parallel ...................................................................... 14 4.5.5. Connecting multiple batteries in series/parallel .............................................................. 14 4.5.6. Battery banks consisting of different batteries ............................................................... 15 4.6. Connecting the BMS ...................................................................................................... 15 4.7.
Charger settings ........................................................................................................... 16 4.8. Commissioning ............................................................................................................ 16 5. Operation ............................................................................................................................ 17 5.1. Monitoring & Control ...................................................................................................... 17 5.1.1. Monitoring the battery via VictronConnect ................................................................... 17 5.1.2.
Monitoring the battery via a GX device ....................................................................... 18 5.1.3. Monitoring the battery via the VRM Portal .................................................................... 18 5.2. Battery charging and discharging ........................................................................................ 18 5.2.1. Charging the battery and recommended charger settings ................................................. 18 5.2.2. Discharging ...................................................................................................... 20 5.3.
Observe the operating conditions ....................................................................................... 20 5.4. Battery care ................................................................................................................ 22 6. Troubleshooting & support ....................................................................................................... 23 6.1. Battery issues .............................................................................................................. 23 6.1.1. How to recognise cell imbalance .............................................................................. 23 6.1.2.
Causes for cell imbalance or a variation in cell voltages ................................................... 23 6.1.3. How to recover an imbalanced battery ....................................................................... 24 6.1.4. Less capacity than expected ................................................................................... 24 6.1.5. Battery very low terminal voltage .............................................................................. 25 6.1.6. Battery is close to end-of-cycle life or has been misused .................................................. 26 6.2.
BMS issues ................................................................................................................ 27 6.2.1. The BMS frequently disables the battery charger ........................................................... 27 6.2.2. The BMS is prematurely turning chargers off ................................................................ 27