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electrical:depth_of_discharge

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electrical:depth_of_discharge [2020/06/23 07:55]
frater_secessus
electrical:depth_of_discharge [2020/08/02 09:55] (current)
frater_secessus [SoC by voltage]
Line 71: Line 71:
   * constant light loads with measured >=12.2v   * constant light loads with measured >=12.2v
   * intermittent heavier loads that leave the system with measured >=12.2v when that load is removed   * intermittent heavier loads that leave the system with measured >=12.2v when that load is removed
 +
 +The more challenging task is judging when to kill the circuit based on voltage **under heavier loads**. ​ It may take experimentation with your system to see where the battery voltage rebounds after removing the heavy loads. ​ An approach might be:
 +
 +  - apply expected load
 +  - run battery down to 11.5v (then 11.25, 11, 10.75, 10.5 etc until battery no longer rebounds to 12.1-12.2v)
 +  - remove load
 +  - observe battery voltage
 +
 +If the battery rebounds to the desired voltage then repeat to deeper discharge. ​ Stop when the battery no longer can rebound to the setpoint. ​ The LVD voltage is the lowest voltage the system can  drop to and still rebound to the desired setpoint when the load is removed. ​
  
  
electrical/depth_of_discharge.txt ยท Last modified: 2020/08/02 09:55 by frater_secessus