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electrical:12v:b2b [2021/06/05 18:59] frater_secessus [Renogy] |
electrical:12v:b2b [2021/06/18 18:46] frater_secessus [examples - with MPPT] |
===== examples - with MPPT ===== | ===== examples - with MPPT ===== |
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Combining the [[electrical:solar:charge_controller|solar charge controller]] and DC-DC charger in one unit can have benefits in cleaner/simpler installation and perhaps cost over separate components. The downsides are less configurabilty((you aren't choosing your own highly-configurable components)), single points of failure, and limited options on solar input. | Combining the [[electrical:solar:charge_controller|solar charge controller]] and DC-DC charger in one unit can have benefits in cleaner/simpler installation, starter battery maintenance from solar, and perhaps cost over separate components. The downsides are less configurabilty((you aren't choosing your own highly-configurable components)), single points of failure, and limited options on solar input. |
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Combo units typically have much **lower maximum panel input voltages** (as low as 23v) than a standalone charge controller would (60v - 150v). This limits the solar configuration in a few ways: | Combo units typically have much **lower maximum panel input voltages** (as low as 23v) than a standalone charge controller would (60v - 150v). This limits the solar configuration in a few ways: |
* driving in daytime: 25A alternator + 15A solar = 40A total charging | * driving in daytime: 25A alternator + 15A solar = 40A total charging |
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[[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|Behavior is the same for the 30A model]] (pdf) only 15A + 15A where the 50A model was 25A + 25A above. | [[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|Behavior is the same for the 30A model]] (pdf) except 15A + 15A //vs// 25A + 25A above. |
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