Separate Calculation for Charging/Discharging Capacity for Home Assistant Battery Management

[DAVEfromCZE]

Checklist

• [X] I have filled out the template to the best of my ability.
• [X] I have understood that this integration is only about battery management systems with Bluetooth Low Energy support.
• [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• [X] This issue is not a duplicate of any previous feature requests.

Please describe the enhancement you would like to have.

Hello 
First, thank you for your work on this project—it's been incredibly helpful in integrating my Seplos BMS with Home Assistant.

I would like to suggest a feature enhancement that I believe could benefit many users:
Could you add support for calculating separate capacities for charging and discharging energy in Home Assistant's battery management?

Currently, my Seplos BMS provides only the remaining capacity, which makes it challenging to track charging and discharging energy separately. Having this feature would allow better monitoring and management of energy flow in Home Assistant.

Thank you for considering this request, and please let me know if you need any additional details or testing support.

Additional context

No response

[patman15]

Hi! Thanks for the feedback and this request. The topic of energy management was also on my list to be improved. The remaining capacity sensor is not the right one to be used for energy management anyway, the easiest to be used would be "total energy in/out". Unfortunately, this is not provided by most of the BMS. Would a separate "power in" and "power out" sensor fulfill your need? In that case you would still need to add a template integration sensor before you can add it to the energy management. Still, one/two steps less. Let me know your thoughts/expectations.