electrical:12v:voltage_sensing
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electrical:12v:voltage_sensing [2023/07/03 13:46] frater_secessus [Chargers with voltage sensing] |
electrical:12v:voltage_sensing [2023/07/03 13:55] frater_secessus [solar] |
====== Chargers with voltage sensing ====== | ====== Chargers with voltage sensing ====== |
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Higher charge/discharge current can distort the voltage the charging source "sees" at that source's BATT terminals. For example, f the battery battery bank is actually 13.0v and the charger is putting out a lot of current the battery voltage might appear (to the charger) to be 13.4v. This can cause undercharging due to early Absorption termination.((It can also happen on disccharge, but the LOAD outputs on the controller are rarely providing so much current that the voltage sags)) | Higher charge/discharge current can distort the voltage the charging source "sees" at that source's BATT terminals. For example, if the battery battery bank is actually 13.0v and the charger is putting out a lot of current the battery voltage might appear (to the charger) to be 13.4v. From the bank's point of view it's voltage //sag//. From the controller's point of view it's voltage //rise//. ((It can also happen on disccharge, but the LOAD outputs on the controller are rarely providing so much current that the voltage sags)) This effect is aggravated by undersized wiring or poor connections. |
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This effect is aggravated by undersized wiring. | |
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The **Victron** line uses the [[https://amzn.to/3DqCqGd|Smart Battery Monitor]], [[https://amzn.to/3wH0gKe|Smart Shunt]], [[https://amzn.to/3Y9rFQK|Smart Battery Sense]] to send voltage info via bluetooth to [[https://amzn.to/3XNCvfo|SmartSolar controllers]] (built-in BT) and [[https://amzn.to/3wEROuJ|BlueSolar controllers]] (using an add-on [[https://amzn.to/3wBAzKS|BT dongle]]). | The **Victron** line uses the [[https://amzn.to/3DqCqGd|Smart Battery Monitor]], [[https://amzn.to/3wH0gKe|Smart Shunt]], [[https://amzn.to/3Y9rFQK|Smart Battery Sense]] to send voltage info via bluetooth to [[https://amzn.to/3XNCvfo|SmartSolar controllers]] (built-in BT) and [[https://amzn.to/3wEROuJ|BlueSolar controllers]] (using an add-on [[https://amzn.to/3wBAzKS|BT dongle]]). |
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Most other controllers use dedicated sense wires, which are often just plain wire. Some controllers have special connectors which might require a proprietary sense wire (see below). | Most other controllers with voltage sensing use dedicated sense wires, which are often just plain wire. Some controllers have special connectors which might require a proprietary sense wire (see below). |
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{{ https://cdn11.bigcommerce.com/s-fhnch/images/stencil/500x659/products/1704/21107/product_appearance__71728.1647589912.jpg?125}} | {{ https://cdn11.bigcommerce.com/s-fhnch/images/stencil/500x659/products/1704/21107/product_appearance__71728.1647589912.jpg?125}} |
electrical/12v/voltage_sensing.txt · Last modified: 2023/07/03 13:56 by frater_secessus