Here you can request a new battery profile for your GRNbms device.

⚠️ Important Rules:

• Only one active request allowed at a time.
• Request is linked to your user account and cannot be moved.
• Your device must be registered to the same account.
• You need at least a Basic abbo. Then the option can be found in the sidebar under “Module types”.

• Name: Choose a clear name for your battery.

➡️ Ideally include manufacturer, model/type, and other important details
(e.g., „LG INR18650-MJ1 3500mAh“).
This helps with faster and more accurate matching during approval. —-

• Min Volt Warning: Below this voltage per cell you get a warning.
• Min Volt Error: Below this voltage per cell the system enters error.
• Max Volt Warning: Above this voltage per cell you get a warning.
• Max Volt Error: Above this voltage per cell the system enters error.

❗ ¹ Attention:

These voltages are per cell!
Internally, the system multiplies by the number of cells in series (12S = ×12).

• Temp Sensor Type: Choose the sensor used (e.g., NTC10k, PT1000, etc.).
• Temp Sensor Count (GRN CMU): How many temp sensors your CMU uses (0–3).

ℹ️ Note:
These fields are only relevant if you are using a GRN CMU (Cell Monitoring Unit).
If your battery does not use a GRN CMU, you can ignore these settings.

• Min Temp Warning: Below this temperature you get a warning.
• Min Temp Error: Below this, the system enters error.
• Max Temp Warning: Above this temperature you get a warning.
• Max Temp Error: Above this, the system enters error. (All values in °C)

—-

• Min Balance Voltage: Start balancing when cell voltage reaches this value.
• Max Balance Voltage: Stop balancing above this value.
• Max Balance Load: Maximum battery load (in %) up to which balancing is still active.
  If the load exceeds this percentage, balancing is automatically paused to avoid interfering with heavy charging/discharging.
• Balance Current: Estimated balancing current per cell (A).
• Balance Target (overall): Balancing goal voltage across all cells.

—-

• Delta Warning 0 Load: Maximum allowed voltage difference between cells at no load (relaxed battery).
• Delta Error 0 Load: Error if exceeded at no load.
• Delta Warning Full Load: Max allowed difference under full load.
• Delta Error Full Load: Error if exceeded under full load.

❗ ¹ Attention:

The value you set is per cell but the system multiplies it with the number of cells in series for calculations.

• Max DC Current: Max discharge current allowed per cell (in Ampere).
• Max CH Current: Max charge current allowed per cell (in Ampere).
• Cell Capacity Wh: Energy content of one single cell in Watt-hours.

❗ ² Attention (for currents):

DC and CH currents are multiplied by parallel strings.
⚡ Example:
If you have 5P (5 cells in parallel), the allowed system current = Value × 5.

BUT:
If you use pre-assembled battery modules (e.g., 12S5P module), the whole module counts as 1 parallel group for the BMS!
→ So in this case, do NOT multiply by 5 manually!

❗ ³ Attention (for capacity):
The „Cell Capacity Wh“ must be for ONE cell only.
The BMS calculates total pack energy internally:
Capacity × Number of all cells (series × parallel).

⚡ Example:

• Module = 12S5P
• Total cells = 12 × 5 = 60
• If total module has 600Wh,

then cell capacity must be:
600Wh ÷ 12 cells = 50Wh
(not ÷60!)

• Temperature vs Current: Defines how much current is allowed depending on cell temperature.🔥 The colder or hotter it gets, the lower the allowed charge/discharge current.
• SOC vs Current: Defines how much current is allowed depending on State of Charge (SOC %).🔋 At very low or very high SOC, the allowed current is automatically reduced.

❗ Important: Both maps limit the maximum available current in % relative to the normal current settings!

(Example: If 50% is set, only half the current is allowed at that point.)

Voltage vs SOC:

• Defines how a measured cell voltage is mapped to a SOC %.

✅ Always enter per cell values unless otherwise stated.
✅ Always think about series cells for voltages.
✅ Always think about parallel groups (modules) for currents.
✅ For capacity, use only per-cell capacity, independent of parallel count.

After filling everything carefully, press „Send Request“.
Your request will be reviewed manually.

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• After you send the request, it will go through a manual review by our team.
• You will receive an email notification at every step:
  • When you submit the request
  • When your request is approved
  • When your request is rejected