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electrical:solar:sizing [2021/06/21 14:15] frater_secessus [Sizing a solar installation] |
electrical:solar:sizing [2022/01/15 03:10] princess_fluffypants [voltage] |
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A rule of thumb is flooded lead acid batteries in offgrid scenarios should be charged between C/10 and C/8. For a 200AH bank this would be 20A-25A. | A rule of thumb is flooded lead acid batteries in offgrid scenarios should be charged between C/10 and C/8. For a 200AH bank this would be 20A-25A. | ||
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+ | === reserve === | ||
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+ | | **total**| | ||
+ | | | | | ||
+ | | Minimum battery bank((except lithium))| | ||
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+ | and that's just to get through a 24hr period **with good sun**. | ||
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+ | | | **Rated Ah**| **cost (flooded)**| | ||
+ | | **Minimum battery bank((except lithium)) | ||
+ | 0 days of reserve**| | ||
+ | | | | | | | | ||
+ | | **1 day of reserve**| | ||
+ | | **2 days of reserve**| | ||
+ | | **3 days of reserve**| | ||
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==== charging efficiency ==== | ==== charging efficiency ==== | ||
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Lithium batteries have very high charging efficiency, so 50A consumed will take ~50A to recharge. | Lithium batteries have very high charging efficiency, so 50A consumed will take ~50A to recharge. | ||
- | ==== voltage | + | ==== Voltage |
Most camper solar installs run at [[electrical: | Most camper solar installs run at [[electrical: |