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electrical:12v:lvd [2018/06/23 13:50]
frater_secessus [challenges]
electrical:12v:lvd [2019/10/01 10:02]
frater_secessus [common LVD setpoints]
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 ===== common LVD setpoints ===== ===== common LVD setpoints =====
  
-Lead-acid deep cycle batteries ​last the longest with best capacity if they are never cycled more than 50% [[electrical:​depth_of_discharge|Depth of Discharge]]((and fully charged afterwards)). ​ That point is somewhere around 12.20v when rested or very lightly loaded.  ​ +Lead-acid deep cycle batteries are typically discharged ​50% [[electrical:​depth_of_discharge|Depth of Discharge]] ​or less ((and fully charged afterwards)). ​ That point is somewhere around 12.20v when rested or very lightly loaded.  ​
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 This following chart((http://​www.trojanbattery.com/​pdf/​GEL_Trojan_ProductLineSheet.pdf)) shows DoD vs expected duty cycles. ​ In an offgrid scenario we will assume the bank is cycled every night. ​ If the bank is drained to the usual 50% DoD the bank((under lab conditions)) is predicted to last 1000 cycles, or about 3 years. ​ If the bank cycle is shallower to 20% DoD the bank is expected to last 2500 cycles, or about 7.5 years. ​ If the bank is deeply cycled to 80% DoD the bank is expected to last 500 cycles, or about 1.5 years. This following chart((http://​www.trojanbattery.com/​pdf/​GEL_Trojan_ProductLineSheet.pdf)) shows DoD vs expected duty cycles. ​ In an offgrid scenario we will assume the bank is cycled every night. ​ If the bank is drained to the usual 50% DoD the bank((under lab conditions)) is predicted to last 1000 cycles, or about 3 years. ​ If the bank cycle is shallower to 20% DoD the bank is expected to last 2500 cycles, or about 7.5 years. ​ If the bank is deeply cycled to 80% DoD the bank is expected to last 500 cycles, or about 1.5 years.
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-[[electrical:​12v:​lifepo4_batteries_thread|LiFePO4]] nominal 12v banks can be safely drained to 80-90% Depth of Discharge. ​ That point is something like 12.0v.((http://​rvwiki.mousetrap.net/​doku.php?​id=electrical:​12v:​lifepo4_batteries_thread#​notable_voltage_reference_points))+[electrical:​12v:​deep_cycle_battery#​lithium_chemistries[electrical:​12v:​lifepo4_batteries_thread|LiFePO4]] nominal 12v banks can be safely drained to 80-90% Depth of Discharge. ​ That point is something like 12.0v.((http://​rvwiki.mousetrap.net/​doku.php?​id=electrical:​12v:​lifepo4_batteries_thread#​notable_voltage_reference_points))
  
 ===== challenges ===== ===== challenges =====
electrical/12v/lvd.txt · Last modified: 2019/10/01 10:02 by frater_secessus