problem about 1300 battery_model.inc

[William.wei]

hi support team,

i was testing about pMIC1300, and i have three questions:

1. what is the model of battry_model.inc for in our npm1300_fuel_gauge demo? is it for LP302533, or for LP803448?

    we are using LP803448 for thingy serials, whre can i find this kind of battry_model.inc

2. where is the configuration file for PC nPM PwerUP application for LP803448, because we can support this battery by default. so i guess we must have this model already.

3. battery_model struct is not documented, may i ask why?

/**

 * @brief Battery model parameters.

 *

 * @details Parameter details purposefully not documented.

 */

struct battery_model {

    float param_1[201];

    float temps[3];

    float param_2[122];

    float param_3[201];

    float param_4[201];

    float param_5[201];

    float param_6[201];

    float param_7[122];

    float param_8[122];

    float param_9[3];

    float param_10[6];

    float param_11[6];

    float param_12[3];

    char name[64];

};

in nrf_fuel_gauge.h

 

Regards,

William.

[Kazi Afroza Sultana]

Hello,

''What is the model of battry_model.inc for in our npm1300_fuel_gauge demo? is it for LP302533, or for LP803448?

   we are using LP803448 for thingy serials, whre can i find this kind of battry_model.inc''

Yes. We have battery model for that. You can generate the .json and .inc file of these two batteries which is included in the SW on the EK. 

You can follow this link https://infocenter.nordicsemi.com/pdf/nan_045.pdf for the details.

I have asked my team about your other queries. I will get back to you tomorrow.

Thanks.

BR

Kazi

[Andy Sinclair]

Hi William.

1. The example model is LP302535.

2. The default configurations are in the nPM controller firmware.
     We are working on how best to make them available at the moment.
     I have included the models here so you can copy the appropriate model into your .inc file:
 battery_model_default.txt 

3. The model parameters are subject to change, so we want to avoid any expectation that they have a fixed meaning.
    The structure is only intended to be use with a model generated by the profiling tool.

[William.wei]

Thanks Andy,

The current of testing result is 125mA, basically the same with LP302535, if i want to see 800mA charging current, i have to build another model, right?

William.

[Andy Sinclair]

Hi William.

The algorithm will adapt to different charge current, so you don't need to recreate the model to change the charge current.
Please be sure to check the cell datasheet before increasing the charge current significantly to ensure that you remain within the safe operating conditions of the cell.

Andy