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electrical:solar:charge_controller_setpoints [2017/10/26 21:31] frater_secessus |
electrical:solar:charge_controller_setpoints [2020/01/07 21:26] frater_secessus [charging setpoints] |
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====== Solar charge controller setpoints ====== | ====== Solar charge controller setpoints ====== | ||
- | Controller behavior is guided by // | + | [[electrical: |
===== charging setpoints ===== | ===== charging setpoints ===== | ||
- | Most charging-related setpoints are // | ||
- | * Absorption voltage (Vabs) - the voltage | + | Charging setpoints are configured in accordance with the battery |
+ | Note that many less expensive charge controllers only have preconfigured presets like " | ||
+ | * **Float voltage (Vfloat)** - the voltage the battery bank is held at during [[electrical: | ||
+ | * **Absorption voltage (Vabs)** - the voltage the battery bank is held at during [[electrical: | ||
+ | * **Absorption duration** - the amount of time Vabs will be held until dropping to Vfloat. | ||
+ | * **Absorption termination** - the amount of current (or percentage of capacity) Absorption must fall to before dropping to Vfloat. | ||
+ | * **Absorption restart** - voltage (or duration) at which Absorption stage after failing to maintain Vfloat | ||
===== load setpoints ===== | ===== load setpoints ===== | ||
+ | Only present on controllers with LOAD outputs. | ||
+ | |||
+ | * **Low voltage disconnect (Vlvd)** - voltage at which the controller turns off loads to prevent excessive battery discharge. | ||
+ | * **Low voltage reconnect (Vlvr)** - the setpoint at which the load is turned back on after recovering from Vlvd cutoff. | ||