electrical:solar:overbanking
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electrical:solar:overbanking [2017/10/01 11:17] frater_secessus |
electrical:solar:overbanking [2020/10/11 19:48] (current) |
====== Overbanking ====== | ====== Overbanking ====== |
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Overbanking means having a lead-acid chemistry (flooded or AGM) bank oversized compared to available solar power. | //Overbanking// means having a battery bank oversized compared to charging power (particularly in solar-only scenarios). |
The [[electrical:solar:panel-bank_ratio|solar:battery ratio]] would be something like 1:2. | The [[electrical:solar:panel-bank_ratio|solar:battery ratio]] might be something like 1:2. Overbanking is the opposite of [[electrical:solar:overpaneling|overpaneling]]. |
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| [[electrical:12v:deep_cycle_battery#lithium_chemistries|Lithium]] chemistries are not bothered by partial state of charge so overbanking is a non-issue for them. The camper might have a lot of lithium capacity to take advantage of [[electrical:12v:alternator|alternator charging]] or [[electrical:shore_power|shore power]] charging (via [[electrical:converter|converter]] or stand-alone charger). |
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| ===== harmful effects ===== |
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| Problems can crop up when a 'dweller unintentionally overbanks: "Hi guys! I just bought 400Ah of AGM batteries and a 100w solar setup!" |
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| Unintentionally overbanked designs are also found where a 'dweller wants to run large [[electrical:inverter|inverter]] loads and forgets how much power it takes to **recharge the batteries fully every day**. Failure to recharge fully leads to [[electrical:batterycide|battery murder]]. |
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| [[electrical:12v:alt_and_solar|Adding alternator charging]] or [[electrical:converter|shore power charging]] to solar can help oversized banks stay healthy. |
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Overbanked designs are generally found when a 'dweller wants to run large [[electrical:inverter|inverter]] loads and forgets how much power it takes to **recharge the batteries fully every day**. This leads to [[electrical:batterycide|battery murder]]. | |
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[[electrical:12v:lifepo4_batteries_thread|Lithium]] chemistries are not bothered by partial state of charge so overbanking is a non-issue for them. | |
electrical/solar/overbanking.1506871035.txt.gz · Last modified: 2020/10/11 19:48 (external edit)