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electrical:depth_of_discharge [2020/11/26 10:17] frater_secessus [SoC by voltage] |
electrical:depth_of_discharge [2022/01/26 01:22] princess_fluffypants [Depth of discharge / State of Charge] |
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DoD has a **significant impact on longevity of deep cycle batteries**. | DoD has a **significant impact on longevity of deep cycle batteries**. | ||
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+ | Note: This information is primarily relevant to lead-chemistry batteries. | ||
===== effect of SoC on battery life ===== | ===== effect of SoC on battery life ===== | ||
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* 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**. | + | The more challenging task is judging when to kill the circuit based on voltage **under heavier loads**. |
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+ | {{ https:// | ||
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+ | For a 200A bank 50% DoD would be 12.1v at rest, ~12.0v at C/10 (20A discharge), ~11.55v at C/5 (40A discharge), and 11.2v at C/3 (~70A discharge). | ||
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+ | It may take experimentation with your system to see where the battery voltage rebounds after removing the heavy loads. | ||
- apply expected load | - apply expected load |