The BMS (Battery Management System) is the electronic system found inside battery packs and modules. What data is available in this equipment?
Here, we will focus on the six vehicles that are statistically the most commonly found in repair or dismantling in France, due to their market launch date and production volume.
Voltage, temperature, SOC (State of Charge), SOH (State of Health), as well as statistics on battery usage, are mostly available. These data remain stored whether the battery is installed in the vehicle or the pack has been removed.
Reading this information, either statically or continuously, simplifies the management of these battery packs throughout all stages of their lifecycle.
| Renault Zoe Gen1 | Nissan Leaf Gen1 | Citroën C-zero Peugeot Ion | Renault Zoe Gen2 | Tesla Model S | Tesla Model 3 | |
|---|---|---|---|---|---|---|
| SOH | Average, Minimal | X | X | Generic , AP, GP | X | ? |
| SOC | Reel, User | X | Reel, User | Reel, User | X | Min, Max, Mean |
| Pack voltage | X | X | X | X | X | X |
| Cell Voltages | 96 | 96 | 88 | 96 | 96 | X (model?) |
| Temperatures | 12 | 4 | 66 | 16 | 32 | X (model?) |
| Isolation | X | X | ||||
| DC resistance | Min, Max | Charge, Discharge | ||||
| DTC code | X | X | X | X | X | X |
| Odometer | X | X | X | X | ||
| Total Time | X | X | X | X | X | |
| Charge numbers | Quick, normal, full, partial, HV | DC, complete, partial,external | X | X | ||
| Full life kWh | X | charge, discharge, regen | charge, discharge | charge, discharge | ||
| Historical records | 6 segments | 25 segments | ||||
| Cell failure history | 256 segments | |||||
| Serial number | X | X | ? | X | ||
| Vehicle VIN code | X | |||||
| year of production | X |