Reduce Battery Charge Current when above 93% charge
Posted: Tue Sep 10, 2024 2:49 pm
Code: Select all
alias: Charge Reduction
description: ""
trigger:
- platform: time_pattern
minutes: /1
condition:
- condition: or
conditions:
- condition: numeric_state
entity_id: sensor.battery_soc
below: 90
- condition: numeric_state
entity_id: sensor.battery_soc
above: 93
action:
- if:
- condition: numeric_state
entity_id: sensor.battery_soc
above: 92
then:
- if:
- condition: numeric_state
entity_id: sensor.max_charge_current
above: 10
then:
- service: number.set_value
data:
value: 4
target:
entity_id: number.max_charge_current
- service: logbook.log
data:
message: Setting Max Charge to 4A
name: Max Charge
else:
- if:
- condition: numeric_state
entity_id: sensor.battery_soc
below: 90
then:
- if:
- condition: numeric_state
entity_id: sensor.max_charge_current
below: 10
then:
- service: number.set_value
data:
value: "35"
target:
entity_id: number.max_charge_current
- service: logbook.log
data:
message: Setting Max Charge to 35A
name: Max Charge
mode: single
Whilst this will slow down the final 6% of charging the battery it helps to maintain the battery balance by giving the batteries more time to top balance.
In home assistant go to Settings, Automations & Scenes and click the blue button in the bottom corner that says 'CREATE AUTOMATION' , select 'Create new automation', then click the three dots in the top right corner of the window and choose 'Edit in Yaml'
Copy the code above into the new automation overwriting what is there, then click 'Save'
This automation will be called 'Charge Reduction' and once saved will start to work the next time your battery SoC goes over 93%